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BOSTON MARATHON 2026

Kate Underwood

Bib: 22105•F

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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
26:56
3.11 mi
Rank: #21034
Start → 5K
26:56 | 8:41/mi
10K
54:06
6.21 mi
Rank: #21357 (-323)
5K → 10K
27:10 | 8:45/mi
15K
1:21:05
9.32 mi
Rank: #21274 (+83)
10K → 15K
26:59 | 8:42/mi
20K
1:48:16
12.43 mi
Rank: #21102 (+172)
15K → 20K
27:11 | 8:45/mi
HALF
1:54:07
13.11 mi
Rank: #21074 (+28)
20K → HALF
5:51 | 8:35/mi
25K
2:15:19
15.53 mi
Rank: #20878 (+196)
HALF → 25K
21:12 | 8:45/mi
30K
2:43:05
18.64 mi
Rank: #20592 (+286)
25K → 30K
27:46 | 8:57/mi
20M
2:55:41
20.00 mi
Rank: #20554 (+38)
30K → 20M
12:36 | 9:17/mi
21M
3:05:03
21.00 mi
Rank: #20400 (+154)
20M → 21M
9:22 | 9:22/mi
35K
3:11:55
21.75 mi
Rank: #20411 (-11)
21M → 35K
6:52 | 9:11/mi
23M
3:23:31
23.00 mi
Rank: #20370 (+41)
35K → 23M
11:36 | 9:17/mi
24M
3:32:48
24.00 mi
Rank: #20390 (-20)
23M → 24M
9:17 | 9:17/mi
40K
3:40:54
24.85 mi
Rank: #20380 (+10)
24M → 40K
8:06 | 9:29/mi
25.2M
3:44:28
25.20 mi
Rank: #20385 (-5)
40K → 25.2M
3:34 | 10:21/mi
FINISH
3:54:09
26.22 mi
Rank: #20500 (-115)
25.2M → FINISH
9:41 | 9:31/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:07
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:00:02
Pace9:10 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:5826:568:4126:56
8:41
-
10K
6.21 mi11:56:0854:068:4327:10
8:45
+0:04
15K
9.32 mi12:23:071:21:058:4226:59
8:42
-0:03
20K
12.43 mi12:50:181:48:168:4327:11
8:45
+0:03
HALF
13.11 mi12:56:091:54:078:435:51
8:35
-0:10
25K
15.53 mi13:17:212:15:198:4321:12
8:45
+0:10
30K
18.64 mi13:45:072:43:058:4527:46
8:57
+0:12
20M
20.00 mi13:57:432:55:418:4812:36
9:17
+0:20
21M
21.00 mi14:07:053:05:038:499:22
9:22
+0:05
35K
21.75 mi14:13:573:11:558:506:52
9:11
-0:11
23M
23.00 mi14:25:333:23:318:5111:36
9:17
+0:06
24M
24.00 mi14:34:503:32:488:539:17
9:17
0:00
40K
24.85 mi14:42:563:40:548:548:06
9:29
+0:12
25.2M
25.20 mi14:46:303:44:288:553:34
10:21
+0:52
FINISH
26.22 mi14:56:113:54:098:579:41
9:31
-0:50

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

8:35 /mi

Average Pace

8:56 /mi

Slowest Pace

10:21 /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

2:43:05

70% of race

Time at Steady Pace

49:43

21% of race

Time at Slower Pace

21:21

9% of race

Average Pace: 8:56 /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 mi11:28:5826:568:4126:56
8:41
#21034
10K
6.21 mi11:56:0854:068:4327:10
8:45
#21357
15K
9.32 mi12:23:071:21:058:4226:59
8:42
#21274
20K
12.43 mi12:50:181:48:168:4327:11
8:45
#21102
HALF
13.11 mi12:56:091:54:078:435:51
8:35
#21074
25K
15.53 mi13:17:212:15:198:4321:12
8:45
#20878
30K
18.64 mi13:45:072:43:058:4527:46
8:57
#20592
20M
20.00 mi13:57:432:55:418:4812:36
9:17
#20554
21M
21.00 mi14:07:053:05:038:499:22
9:22
#20400
35K
21.75 mi14:13:573:11:558:506:52
9:11
#20411
23M
23.00 mi14:25:333:23:318:5111:36
9:17
#20370
24M
24.00 mi14:34:503:32:488:539:17
9:17
#20390
40K
24.85 mi14:42:563:40:548:548:06
9:29
#20380
25.2M
25.20 mi14:46:303:44:288:553:34
10:21
#20385
FINISH
26.22 mi14:56:113:54:098:579:41
9:31
#20500
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 mi210348189818921127(Top 73%)8198(Top 65%)8198(Top 665%)
10K6.21 mi3.10 mi21357-3238338-1498338-14921645(Top 75%)8464(Top 67%)8464(Top 686%)
15K9.32 mi3.11 mi21274+838292+468292+4621127(Top 73%)8198(Top 65%)8198(Top 665%)
20K12.43 mi3.11 mi21102+1728205+878205+8720715(Top 71%)8002(Top 64%)8002(Top 649%)
HALF13.11 mi0.68 mi21074+288190+158190+1520767(Top 72%)8000(Top 64%)8000(Top 649%)
25K15.53 mi2.42 mi20878+1968098+928098+9219944(Top 69%)7633(Top 61%)7633(Top 619%)
30K18.64 mi3.11 mi20592+2867974+1247974+12419292(Top 66%)7377(Top 59%)7377(Top 598%)
20M20.00 mi1.36 mi20554+387957+177957+1720205(Top 70%)7919(Top 63%)7919(Top 642%)
21M21.00 mi1.00 mi20400+1547893+647893+6417970(Top 62%)6783(Top 54%)6783(Top 550%)
35K21.75 mi0.75 mi20411-117905-127905-1220735(Top 71%)8307(Top 66%)8307(Top 674%)
23M23.00 mi1.25 mi20370+417896+97896+919730(Top 68%)7855(Top 62%)7855(Top 637%)
24M24.00 mi1.00 mi20390-207922-267922-2620588(Top 71%)8335(Top 66%)8335(Top 676%)
40K24.85 mi0.85 mi20380+107936-147936-1420308(Top 70%)8226(Top 65%)8226(Top 667%)
25.2M25.20 mi0.35 mi20385-57942-67942-620618(Top 71%)8373(Top 67%)8373(Top 679%)
FINISH26.22 mi1.02 mi20500-1158010-688010-6822364(Top 77%)9260(Top 74%)9260(Top 751%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21127

Females

8198

F50-54

8198

5K→10K

3.1 - 6.2 mi

Top 75%
×5
+79ft-138ft

Overall

21645

Females

8464

F50-54

8464

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21127

Females

8198

F50-54

8198

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20715

Females

8002

F50-54

8002

20K→HALF

12.4 - 13.1 mi

Top 72%
×2
+19ft-37ft

Overall

20767

Females

8000

F50-54

8000

HALF→25K

13.1 - 15.5 mi

Top 69%
×4
+66ft-88ft

Overall

19944

Females

7633

F50-54

7633

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19292

Females

7377

F50-54

7377

30K→20M

18.6 - 20.0 mi

Top 70%
×5
+64ft-50ft

Overall

20205

Females

7919

F50-54

7919

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

17970

Females

6783

F50-54

6783

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20735

Females

8307

F50-54

8307

35K→23M

21.8 - 23.0 mi

Top 68%
×5
+23ft-63ft

Overall

19730

Females

7855

F50-54

7855

23M→24M

23.0 - 24.0 mi

Top 71%
×6
+12ft-82ft

Overall

20588

Females

8335

F50-54

8335

24M→40K

24.0 - 24.9 mi

Top 70%
×1
+6ft-20ft

Overall

20308

Females

8226

F50-54

8226

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1
+13ft-16ft

Overall

20618

Females

8373

F50-54

8373

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22364

Females

9260

F50-54

9260

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1741*
Passed By
941
Net Change
+534
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21034
5K → 10K143200-323#21034#21357
10K → 15K220*137+83#21357#21274
15K → 20K241*69+172#21274#21102
20K → HALF4113+28#21102#21074
HALF → 25K232*36+196#21074#20878
25K → 30K323*37+286#20878#20592
30K → 20M10264+38#20592#20554
20M → 21M17319+154#20554#20400
21M → 35K3041-11#20400#20411
35K → 23M8948+41#20411#20370
23M → 24M5171-20#20370#20390
24M → 40K5747+10#20390#20380
40K → 25.2M2025-5#20380#20385
25.2M → FINISH19134-115#20385#20500
TOTALS1741*941+534

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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