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BOSTON MARATHON 2025

Jessica Shay

Bib: 30123•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:14
Rank: #25710
Start → 5K
10:03/mi
31:14 split
10K· 6.21 mi
1:01:48
Rank: #25296 (+414)
5K → 10K
9:50/mi
30:34 split
15K· 9.32 mi
1:30:25
Rank: #24582 (+714)
10K → 15K
9:13/mi
28:37 split
20K· 12.43 mi
1:59:35
Rank: #24088 (+494)
15K → 20K
9:23/mi
29:10 split
Half· 13.11 mi
2:06:01
Rank: #24044 (+44)
20K → Half
9:26/mi
6:26 split
25K· 15.53 mi
2:29:19
Rank: #23725 (+319)
Half → 25K
9:37/mi
23:18 split
30K· 18.64 mi
3:01:08
Rank: #23457 (+268)
25K → 30K
10:14/mi
31:49 split
20M
3:15:19
Rank: #23323 (+134)
30K → 20M
10:26/mi
14:11 split
21M
3:26:38
Rank: #23260 (+63)
20M → 21M
11:19/mi
11:19 split
35K· 21.75 mi
3:34:37
Rank: #23276 (-16)
21M → 35K
10:40/mi
7:59 split
23M
3:48:19
Rank: #23271 (+5)
35K → 23M
10:57/mi
13:42 split
24M
3:58:27
Rank: #23199 (+72)
23M → 24M
10:08/mi
10:08 split
40K· 24.85 mi
4:08:02
Rank: #23198 (+1)
24M → 40K
11:13/mi
9:35 split
25.2M
4:12:08
Rank: #23199 (-1)
40K → 25.2M
11:53/mi
4:06 split
Finish· 26.22 mi
4:21:49
Rank: #23138 (+61)
25.2M → Finish
9:30/mi
9:41 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:01
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:15:48
Pace10:22 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3131:1410:0331:14
10:03
-
10K
6.21 mi12:23:051:01:489:5730:34
9:50
-0:13
15K
9.32 mi12:51:421:30:259:4228:37
9:13
-0:37
20K
12.43 mi13:20:521:59:359:3729:10
9:23
+0:10
Half
13.11 mi13:27:182:06:019:376:26
9:26
+0:03
25K
15.53 mi13:50:362:29:199:3723:18
9:37
+0:11
30K
18.64 mi14:22:253:01:089:4331:49
10:14
+0:37
20M
20.00 mi14:36:363:15:199:4614:11
10:26
+0:12
21M
21.00 mi14:47:553:26:389:5011:19
11:19
+0:53
35K
21.75 mi14:55:543:34:379:527:59
10:40
-0:39
23M
23.00 mi15:09:363:48:199:5613:42
10:57
+0:17
24M
24.00 mi15:19:443:58:279:5610:08
10:08
-0:49
40K
24.85 mi15:29:194:08:029:599:35
11:13
+1:05
25.2M
25.20 mi15:33:254:12:0810:004:06
11:53
+0:40
Finish
26.22 mi15:43:064:21:4910:009:41
9:30
-2:23

Checkpoints & Pacing

📈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

9:13 /mi

Average Pace

10:00 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:12

37% of race

Time at Steady Pace

1:57:56

45% of race

Time at Slower Pace

46:41

18% of race

Average Pace: 9:59 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:52:3131:1410:0331:14
10:03
#25710
10K
6.21 mi12:23:051:01:489:5730:34
9:50
#25296
15K
9.32 mi12:51:421:30:259:4228:37
9:13
#24582
20K
12.43 mi13:20:521:59:359:3729:10
9:23
#24088
Half
13.11 mi13:27:182:06:019:376:26
9:26
#24044
25K
15.53 mi13:50:362:29:199:3723:18
9:37
#23725
30K
18.64 mi14:22:253:01:089:4331:49
10:14
#23457
20M
20.00 mi14:36:363:15:199:4614:11
10:26
#23323
21M
21.00 mi14:47:553:26:389:5011:19
11:19
#23260
35K
21.75 mi14:55:543:34:379:527:59
10:40
#23276
23M
23.00 mi15:09:363:48:199:5613:42
10:57
#23271
24M
24.00 mi15:19:443:58:279:5610:08
10:08
#23199
40K
24.85 mi15:29:194:08:029:599:35
11:13
#23198
25.2M
25.20 mi15:33:254:12:0810:004:06
11:53
#23199
Finish
26.22 mi15:43:064:21:4910:009:41
9:30
#23138
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25710105911059122897(Top 81%)9046(Top 74%)9046(Top 165%)
10K6.21 mi3.10 mi25296+41410392+19910392+19924960(Top 88%)10213(Top 84%)10213(Top 187%)
15K9.32 mi3.11 mi24582+71410003+38910003+38922897(Top 81%)9046(Top 74%)9046(Top 165%)
20K12.43 mi3.11 mi24088+4949737+2669737+26622547(Top 79%)8889(Top 73%)8889(Top 163%)
Half13.11 mi0.68 mi24044+449715+229715+2223373(Top 82%)9359(Top 77%)9359(Top 171%)
25K15.53 mi2.42 mi23725+3199541+1749541+17422236(Top 78%)8782(Top 72%)8782(Top 161%)
30K18.64 mi3.11 mi23457+2689436+1059436+10522301(Top 79%)8942(Top 73%)8942(Top 164%)
20M20.00 mi1.36 mi23323+1349377+599377+5922265(Top 78%)9044(Top 74%)9044(Top 165%)
21M21.00 mi1.00 mi23260+639368+99368+922204(Top 78%)9084(Top 74%)9084(Top 166%)
35K21.75 mi0.75 mi23276-169392-249392-2423535(Top 83%)9817(Top 80%)9817(Top 180%)
23M23.00 mi1.25 mi23271+59414-229414-2223102(Top 81%)9658(Top 79%)9658(Top 177%)
24M24.00 mi1.00 mi23199+729398+169398+1621771(Top 77%)9020(Top 74%)9020(Top 165%)
40K24.85 mi0.85 mi23198+19415-179415-1723590(Top 83%)9981(Top 82%)9981(Top 183%)
25.2M25.20 mi0.35 mi23199-19416-19416-123022(Top 81%)9665(Top 79%)9665(Top 177%)
Finish26.22 mi1.02 mi23138+619398+189398+1821213(Top 75%)8769(Top 72%)8769(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22897

Females

9046

F18-39

9046

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24960

Females

10213

F18-39

10213

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22897

Females

9046

F18-39

9046

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22547

Females

8889

F18-39

8889

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23373

Females

9359

F18-39

9359

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22236

Females

8782

F18-39

8782

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22301

Females

8942

F18-39

8942

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22265

Females

9044

F18-39

9044

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22204

Females

9084

F18-39

9084

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23535

Females

9817

F18-39

9817

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23102

Females

9658

F18-39

9658

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21771

Females

9020

F18-39

9020

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23590

Females

9981

F18-39

9981

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23022

Females

9665

F18-39

9665

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21213

Females

8769

F18-39

8769

Passing Analysis

Category:
Athletes Passed
2939
Passed By
367
Net Change
+2572
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25710
5K → 10K45844+414#25710#25296
10K → 15K7162+714#25296#24582
15K → 20K4962+494#24582#24088
20K → Half528+44#24088#24044
Half → 25K3278+319#24044#23725
25K → 30K31143+268#23725#23457
30K → 20M15319+134#23457#23323
20M → 21M9835+63#23323#23260
21M → 35K3652-16#23260#23276
35K → 23M6661+5#23276#23271
23M → 24M8816+72#23271#23199
24M → 40K4746+1#23199#23198
40K → 25.2M1920-1#23198#23199
25.2M → Finish7211+61#23199#23138
TOTALS2939367+2572
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing