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BOSTON MARATHON 2026

Karley Merrill

Bib: 12177•F

TX

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 21%
Gender (Female)
#0 / 12578
Top 5%
Age Group (F18-39)
#0 / 5716
Top 11%
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
21:06
3.11 mi
Rank: #6804
Start → 5K
21:06 | 6:48/mi
10K
42:20
6.21 mi
Rank: #7031 (-227)
5K → 10K
21:14 | 6:51/mi
15K
1:03:44
9.32 mi
Rank: #7248 (-217)
10K → 15K
21:24 | 6:54/mi
20K
1:25:02
12.43 mi
Rank: #7073 (+175)
15K → 20K
21:18 | 6:52/mi
HALF
1:29:41
13.11 mi
Rank: #7082 (-9)
20K → HALF
4:39 | 6:50/mi
25K
1:46:21
15.53 mi
Rank: #6936 (+146)
HALF → 25K
16:40 | 6:53/mi
30K
2:08:17
18.64 mi
Rank: #6797 (+139)
25K → 30K
21:56 | 7:04/mi
20M
2:17:48
20.00 mi
Rank: #6661 (+136)
30K → 20M
9:31 | 7:01/mi
21M
2:25:13
21.00 mi
Rank: #6612 (+49)
20M → 21M
7:25 | 7:25/mi
35K
2:30:25
21.75 mi
Rank: #6580 (+32)
21M → 35K
5:12 | 6:58/mi
23M
2:39:10
23.00 mi
Rank: #6471 (+109)
35K → 23M
8:45 | 7:00/mi
24M
2:45:58
24.00 mi
Rank: #6387 (+84)
23M → 24M
6:48 | 6:48/mi
40K
2:51:55
24.85 mi
Rank: #6316 (+71)
24M → 40K
5:57 | 6:58/mi
25.2M
2:54:31
25.20 mi
Rank: #6280 (+36)
40K → 25.2M
2:36 | 7:33/mi
FINISH
3:01:15
26.22 mi
Rank: #6190 (+90)
25.2M → FINISH
6:44 | 6:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:29:41
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:31:34
Pace7:00 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1421:066:4821:06
6:48
-
10K
6.21 mi11:10:2842:206:4921:14
6:51
+0:03
15K
9.32 mi11:31:521:03:446:5121:24
6:54
+0:03
20K
12.43 mi11:53:101:25:026:5121:18
6:52
-0:02
HALF
13.11 mi11:57:491:29:416:514:39
6:50
-0:02
25K
15.53 mi12:14:291:46:216:5116:40
6:53
+0:03
30K
18.64 mi12:36:252:08:176:5321:56
7:04
+0:11
20M
20.00 mi12:45:562:17:486:549:31
7:01
-0:03
21M
21.00 mi12:53:212:25:136:557:25
7:25
+0:24
35K
21.75 mi12:58:332:30:256:555:12
6:58
-0:27
23M
23.00 mi13:07:182:39:106:568:45
7:00
+0:02
24M
24.00 mi13:14:062:45:586:556:48
6:48
-0:12
40K
24.85 mi13:20:032:51:556:565:57
6:58
+0:10
25.2M
25.20 mi13:22:392:54:316:562:36
7:33
+0:35
FINISH
26.22 mi13:29:233:01:156:566:44
6:37
-0:56

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

6:37 /mi

Average Pace

6:55 /mi

Slowest Pace

7:33 /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

2:51:14

94% of race

Time at Steady Pace

10:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:49:1421:066:4821:06
6:48
#6804
10K
6.21 mi11:10:2842:206:4921:14
6:51
#7031
15K
9.32 mi11:31:521:03:446:5121:24
6:54
#7248
20K
12.43 mi11:53:101:25:026:5121:18
6:52
#7073
HALF
13.11 mi11:57:491:29:416:514:39
6:50
#7082
25K
15.53 mi12:14:291:46:216:5116:40
6:53
#6936
30K
18.64 mi12:36:252:08:176:5321:56
7:04
#6797
20M
20.00 mi12:45:562:17:486:549:31
7:01
#6661
21M
21.00 mi12:53:212:25:136:557:25
7:25
#6612
35K
21.75 mi12:58:332:30:256:555:12
6:58
#6580
23M
23.00 mi13:07:182:39:106:568:45
7:00
#6471
24M
24.00 mi13:14:062:45:586:556:48
6:48
#6387
40K
24.85 mi13:20:032:51:556:565:57
6:58
#6316
25.2M
25.20 mi13:22:392:54:316:562:36
7:33
#6280
FINISH
26.22 mi13:29:233:01:156:566:44
6:37
#6190
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi68047117117683(Top 26%)1005(Top 8%)1005(Top 18%)
10K6.21 mi3.10 mi7031-227786-75786-757338(Top 25%)883(Top 7%)883(Top 15%)
15K9.32 mi3.11 mi7248-217860-74860-747683(Top 26%)1005(Top 8%)1005(Top 18%)
20K12.43 mi3.11 mi7073+175819+41819+416724(Top 23%)757(Top 6%)757(Top 13%)
HALF13.11 mi0.68 mi7082-9823-4823-47372(Top 25%)907(Top 7%)907(Top 16%)
25K15.53 mi2.42 mi6936+146785+38785+386464(Top 22%)738(Top 6%)738(Top 13%)
30K18.64 mi3.11 mi6797+139761+24761+246383(Top 22%)792(Top 6%)792(Top 14%)
20M20.00 mi1.36 mi6661+136742+19742+195617(Top 19%)638(Top 5%)638(Top 11%)
21M21.00 mi1.00 mi6612+49737+5737+55990(Top 21%)864(Top 7%)864(Top 15%)
35K21.75 mi0.75 mi6580+327377376748(Top 23%)1067(Top 8%)1067(Top 19%)
23M23.00 mi1.25 mi6471+109727+10727+105419(Top 19%)710(Top 6%)710(Top 12%)
24M24.00 mi1.00 mi6387+84716+11716+115170(Top 18%)697(Top 6%)697(Top 12%)
40K24.85 mi0.85 mi6316+71705+11705+115293(Top 18%)785(Top 6%)785(Top 14%)
25.2M25.20 mi0.35 mi6280+36702+3702+35555(Top 19%)899(Top 7%)899(Top 16%)
FINISH26.22 mi1.02 mi6190+90689+13689+134848(Top 17%)748(Top 6%)748(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21
+97ft-345ft

Overall

7683

Females

1005

F18-39

1005

5K→10K

3.1 - 6.2 mi

Top 25%
×5
+79ft-138ft

Overall

7338

Females

883

F18-39

883

10K→15K

6.2 - 9.3 mi

Top 26%
×3
+67ft-78ft

Overall

7683

Females

1005

F18-39

1005

15K→20K

9.3 - 12.4 mi

Top 23%
×5
+106ft-86ft

Overall

6724

Females

757

F18-39

757

20K→HALF

12.4 - 13.1 mi

Top 25%
×2
+19ft-37ft

Overall

7372

Females

907

F18-39

907

HALF→25K

13.1 - 15.5 mi

Top 22%
×4
+66ft-88ft

Overall

6464

Females

738

F18-39

738

25K→30K

15.5 - 18.6 mi

Top 22%
×9
+181ft-148ft

Overall

6383

Females

792

F18-39

792

30K→20M

18.6 - 20.0 mi

Top 19%
×5
+64ft-50ft

Overall

5617

Females

638

F18-39

638

20M→21M

20.0 - 21.0 mi

Top 21%
×8
+106ft-24ft

Overall

5990

Females

864

F18-39

864

21M→35K

21.0 - 21.8 mi

Top 23%
×7
+17ft-86ft

Overall

6748

Females

1067

F18-39

1067

35K→23M

21.8 - 23.0 mi

Top 19%
×5
+23ft-63ft

Overall

5419

Females

710

F18-39

710

23M→24M

23.0 - 24.0 mi

Top 18%
×6
+12ft-82ft

Overall

5170

Females

697

F18-39

697

24M→40K

24.0 - 24.9 mi

Top 18%
×1
+6ft-20ft

Overall

5293

Females

785

F18-39

785

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1
+13ft-16ft

Overall

5555

Females

899

F18-39

899

25.2M→FINISH

25.2 - 26.2 mi

Top 17%
×2
+22ft-21ft

Overall

4848

Females

748

F18-39

748

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1619
Passed By
1005
Net Change
+614
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6804
5K → 10K137364-227#6804#7031
10K → 15K78295-217#7031#7248
15K → 20K24772+175#7248#7073
20K → HALF1928-9#7073#7082
HALF → 25K17630+146#7082#6936
25K → 30K20768+139#6936#6797
30K → 20M15317+136#6797#6661
20M → 21M8637+49#6661#6612
21M → 35K5624+32#6612#6580
35K → 23M13122+109#6580#6471
23M → 24M9814+84#6471#6387
24M → 40K8514+71#6387#6316
40K → 25.2M415+36#6316#6280
25.2M → FINISH10515+90#6280#6190
TOTALS16191005+614
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing