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BOSTON MARATHON 2026

Karen Alasin

Bib: 26750•F

SC

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F50-54)
#0 / 1233
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
39:04
3.11 mi
Rank: #28932
Start → 5K
39:04 | 12:35/mi
10K
1:17:07
6.21 mi
Rank: #28878 (+54)
5K → 10K
38:03 | 12:15/mi
15K
1:55:37
9.32 mi
Rank: #28825 (+53)
10K → 15K
38:30 | 12:24/mi
20K
2:36:53
12.43 mi
Rank: #28817 (+8)
15K → 20K
41:16 | 13:17/mi
HALF
2:45:20
13.11 mi
Rank: #28805 (+12)
20K → HALF
8:27 | 12:24/mi
25K
3:16:14
15.53 mi
Rank: #28734 (+71)
HALF → 25K
30:54 | 12:45/mi
30K
3:58:36
18.64 mi
Rank: #28654 (+80)
25K → 30K
42:22 | 13:39/mi
20M
4:17:45
20.00 mi
Rank: #28634 (+20)
30K → 20M
19:09 | 14:06/mi
21M
4:33:15
21.00 mi
Rank: #28627 (+7)
20M → 21M
15:30 | 15:30/mi
35K
4:43:51
21.75 mi
Rank: #28637 (-10)
21M → 35K
10:36 | 14:11/mi
23M
5:02:21
23.00 mi
Rank: #28654 (-17)
35K → 23M
18:30 | 14:47/mi
24M
5:18:31
24.00 mi
Rank: #28694 (-40)
23M → 24M
16:10 | 16:10/mi
40K
5:33:36
24.85 mi
Rank: #28753 (-59)
24M → 40K
15:05 | 17:39/mi
25.2M
5:40:31
25.20 mi
Rank: #28770 (-17)
40K → 25.2M
6:55 | 20:04/mi
FINISH
5:58:13
26.22 mi
Rank: #28848 (-78)
25.2M → FINISH
17:42 | 17:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:45:20
Pace12:37 /mi
2nd Half
Distance13.11 mi
Time3:12:53
Pace14:43 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:1839:0412:3539:04
12:35
-
10K
6.21 mi12:38:211:17:0712:2538:03
12:15
-0:20
15K
9.32 mi13:16:511:55:3712:2538:30
12:24
+0:09
20K
12.43 mi13:58:072:36:5312:3841:16
13:17
+0:53
HALF
13.11 mi14:06:342:45:2012:378:27
12:24
-0:53
25K
15.53 mi14:37:283:16:1412:3830:54
12:45
+0:21
30K
18.64 mi15:19:503:58:3612:4842:22
13:39
+0:54
20M
20.00 mi15:38:594:17:4512:5419:09
14:06
+0:27
21M
21.00 mi15:54:294:33:1513:0115:30
15:30
+1:24
35K
21.75 mi16:05:054:43:5113:0410:36
14:11
-1:19
23M
23.00 mi16:23:355:02:2113:0918:30
14:47
+0:36
24M
24.00 mi16:39:455:18:3113:1716:10
16:10
+1:23
40K
24.85 mi16:54:505:33:3613:2615:05
17:39
+1:29
25.2M
25.20 mi17:01:455:40:3113:316:55
20:04
+2:25
FINISH
26.22 mi17:19:275:58:1313:4117:42
17:23
-2:41

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

12:15 /mi

Average Pace

13:40 /mi

Slowest Pace

20:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:34:58

43% of race

Time at Steady Pace

2:11:53

37% of race

Time at Slower Pace

1:11:22

20% of race

Average Pace: 13:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:00:1839:0412:3539:04
12:35
#28932
10K
6.21 mi12:38:211:17:0712:2538:03
12:15
#28878
15K
9.32 mi13:16:511:55:3712:2538:30
12:24
#28825
20K
12.43 mi13:58:072:36:5312:3841:16
13:17
#28817
HALF
13.11 mi14:06:342:45:2012:378:27
12:24
#28805
25K
15.53 mi14:37:283:16:1412:3830:54
12:45
#28734
30K
18.64 mi15:19:503:58:3612:4842:22
13:39
#28654
20M
20.00 mi15:38:594:17:4512:5419:09
14:06
#28634
21M
21.00 mi15:54:294:33:1513:0115:30
15:30
#28627
35K
21.75 mi16:05:054:43:5113:0410:36
14:11
#28637
23M
23.00 mi16:23:355:02:2113:0918:30
14:47
#28654
24M
24.00 mi16:39:455:18:3113:1716:10
16:10
#28694
40K
24.85 mi16:54:505:33:3613:2615:05
17:39
#28753
25.2M
25.20 mi17:01:455:40:3113:316:55
20:04
#28770
FINISH
26.22 mi17:19:275:58:1313:4117:42
17:23
#28848
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi28932125201252028593(Top 99%)12291(Top 98%)12291(Top 997%)
10K6.21 mi3.10 mi28878+5412481+3912481+3928721(Top 99%)12378(Top 98%)12378(Top 1004%)
15K9.32 mi3.11 mi28825+5312442+3912442+3928593(Top 99%)12291(Top 98%)12291(Top 997%)
20K12.43 mi3.11 mi28817+812441+112441+128725(Top 99%)12396(Top 99%)12396(Top 1005%)
HALF13.11 mi0.68 mi28805+1212435+612435+628489(Top 98%)12266(Top 98%)12266(Top 995%)
25K15.53 mi2.42 mi28734+7112386+4912386+4928089(Top 97%)12010(Top 95%)12010(Top 974%)
30K18.64 mi3.11 mi28654+8012338+4812338+4828163(Top 97%)12108(Top 96%)12108(Top 982%)
20M20.00 mi1.36 mi28634+2012333+512333+528188(Top 97%)12143(Top 97%)12143(Top 985%)
21M21.00 mi1.00 mi28627+712327+612327+628358(Top 98%)12262(Top 97%)12262(Top 994%)
35K21.75 mi0.75 mi28637-1012335-812335-828431(Top 98%)12311(Top 98%)12311(Top 998%)
23M23.00 mi1.25 mi28654-1712348-1312348-1328566(Top 98%)12381(Top 98%)12381(Top 1004%)
24M24.00 mi1.00 mi28694-4012377-2912377-2928892(Top 100%)12533(Top 100%)12533(Top 1016%)
40K24.85 mi0.85 mi28753-5912418-4112418-4128921(Top 100%)12541(Top 100%)12541(Top 1017%)
25.2M25.20 mi0.35 mi28770-1712430-1212430-1228965(Top 100%)12561(Top 100%)12561(Top 1019%)
FINISH26.22 mi1.02 mi28848-7812476-4612476-4628967(Top 100%)12565(Top 100%)12565(Top 1019%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21
+97ft-345ft

Overall

28593

Females

12291

F50-54

12291

5K→10K

3.1 - 6.2 mi

Top 99%
×5
+79ft-138ft

Overall

28721

Females

12378

F50-54

12378

10K→15K

6.2 - 9.3 mi

Top 99%
×3
+67ft-78ft

Overall

28593

Females

12291

F50-54

12291

15K→20K

9.3 - 12.4 mi

Top 99%
×5
+106ft-86ft

Overall

28725

Females

12396

F50-54

12396

20K→HALF

12.4 - 13.1 mi

Top 98%
×2
+19ft-37ft

Overall

28489

Females

12266

F50-54

12266

HALF→25K

13.1 - 15.5 mi

Top 97%
×4
+66ft-88ft

Overall

28089

Females

12010

F50-54

12010

25K→30K

15.5 - 18.6 mi

Top 97%
×9
+181ft-148ft

Overall

28163

Females

12108

F50-54

12108

30K→20M

18.6 - 20.0 mi

Top 97%
×5
+64ft-50ft

Overall

28188

Females

12143

F50-54

12143

20M→21M

20.0 - 21.0 mi

Top 98%
×8
+106ft-24ft

Overall

28358

Females

12262

F50-54

12262

21M→35K

21.0 - 21.8 mi

Top 98%
×7
+17ft-86ft

Overall

28431

Females

12311

F50-54

12311

35K→23M

21.8 - 23.0 mi

Top 98%
×5
+23ft-63ft

Overall

28566

Females

12381

F50-54

12381

23M→24M

23.0 - 24.0 mi

Top 100%
×6
+12ft-82ft

Overall

28892

Females

12533

F50-54

12533

24M→40K

24.0 - 24.9 mi

Top 100%
×1
+6ft-20ft

Overall

28921

Females

12541

F50-54

12541

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1
+13ft-16ft

Overall

28965

Females

12561

F50-54

12561

25.2M→FINISH

25.2 - 26.2 mi

Top 100%
×2
+22ft-21ft

Overall

28967

Females

12565

F50-54

12565

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
400
Passed By
316
Net Change
+84
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28932
5K → 10K6511+54#28932#28878
10K → 15K618+53#28878#28825
15K → 20K3628+8#28825#28817
20K → HALF142+12#28817#28805
HALF → 25K732+71#28805#28734
25K → 30K899+80#28734#28654
30K → 20M288+20#28654#28634
20M → 21M147+7#28634#28627
21M → 35K818-10#28627#28637
35K → 23M825-17#28637#28654
23M → 24M141-40#28654#28694
24M → 40K160-59#28694#28753
40K → 25.2M017-17#28753#28770
25.2M → FINISH280-78#28770#28848
TOTALS400316+84
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing