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BOSTON MARATHON 2025

Sarah Walcott-Sapp

Bib: 17477•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Masters (Masters Women)
#0 / 6759
Top 8%
Division (F40-44)
#0 / 1718
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:31
Rank: #9897
Start → 5K
22:31 | 7:15/mi
10K· 6.21 mi
45:12
Rank: #10128 (-231)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:08:45
Rank: #10858 (-730)
10K → 15K
23:33 | 7:35/mi
20K· 12.43 mi
1:32:29
Rank: #11139 (-281)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:37:36
Rank: #11191 (-52)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:55:57
Rank: #11023 (+168)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:20:27
Rank: #10911 (+112)
25K → 30K
24:30 | 7:53/mi
20M
2:31:27
Rank: #10883 (+28)
30K → 20M
11:00 | 8:06/mi
21M
2:39:55
Rank: #10793 (+90)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
2:45:45
Rank: #10783 (+10)
21M → 35K
5:50 | 7:48/mi
23M
2:55:44
Rank: #10667 (+116)
35K → 23M
9:59 | 7:58/mi
24M
3:03:19
Rank: #10540 (+127)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:10:04
Rank: #10458 (+82)
24M → 40K
6:45 | 7:54/mi
25.2M
3:13:00
Rank: #10412 (+46)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:20:27
Rank: #10280 (+132)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:36
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:42:51
Pace7:51 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:4222:317:1522:31
7:15
-
10K
6.21 mi11:35:2345:127:1622:41
7:18
+0:03
15K
9.32 mi11:58:561:08:457:2323:33
7:35
+0:17
20K
12.43 mi12:22:401:32:297:2723:44
7:38
+0:03
Half
13.11 mi12:27:471:37:367:275:07
7:30
-0:08
25K
15.53 mi12:46:081:55:577:2818:21
7:34
+0:04
30K
18.64 mi13:10:382:20:277:3224:30
7:53
+0:19
20M
20.00 mi13:21:382:31:277:3411:00
8:06
+0:13
21M
21.00 mi13:30:062:39:557:378:28
8:28
+0:22
35K
21.75 mi13:35:562:45:457:375:50
7:48
-0:40
23M
23.00 mi13:45:552:55:447:389:59
7:58
+0:10
24M
24.00 mi13:53:303:03:197:387:35
7:35
-0:23
40K
24.85 mi14:00:153:10:047:396:45
7:54
+0:19
25.2M
25.20 mi14:03:113:13:007:402:56
8:30
+0:36
Finish
26.22 mi14:10:383:20:277:397:27
7:19
-1:11

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

7:15 /mi

Average Pace

7:39 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:03

89% of race

Time at Steady Pace

22:24

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi11:12:4222:317:1522:31
7:15
#9897
10K
6.21 mi11:35:2345:127:1622:41
7:18
#10128
15K
9.32 mi11:58:561:08:457:2323:33
7:35
#10858
20K
12.43 mi12:22:401:32:297:2723:44
7:38
#11139
Half
13.11 mi12:27:471:37:367:275:07
7:30
#11191
25K
15.53 mi12:46:081:55:577:2818:21
7:34
#11023
30K
18.64 mi13:10:382:20:277:3224:30
7:53
#10911
20M
20.00 mi13:21:382:31:277:3411:00
8:06
#10883
21M
21.00 mi13:30:062:39:557:378:28
8:28
#10793
35K
21.75 mi13:35:562:45:457:375:50
7:48
#10783
23M
23.00 mi13:45:552:55:447:389:59
7:58
#10667
24M
24.00 mi13:53:303:03:197:387:35
7:35
#10540
40K
24.85 mi14:00:153:10:047:396:45
7:54
#10458
25.2M
25.20 mi14:03:113:13:007:402:56
8:30
#10412
Finish
26.22 mi14:10:383:20:277:397:27
7:19
#10280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi98971763176312428(Top 44%)3121(Top 26%)3121(Top 182%)
10K6.21 mi3.10 mi10128-2311877-1141877-11410368(Top 37%)1996(Top 16%)1996(Top 116%)
15K9.32 mi3.11 mi10858-7302253-3762253-37612428(Top 44%)3121(Top 26%)3121(Top 182%)
20K12.43 mi3.11 mi11139-2812419-1662419-16611870(Top 42%)2927(Top 24%)2927(Top 170%)
Half13.11 mi0.68 mi11191-522450-312450-3111741(Top 41%)2780(Top 23%)2780(Top 162%)
25K15.53 mi2.42 mi11023+1682403+472403+4710512(Top 37%)2329(Top 19%)2329(Top 136%)
30K18.64 mi3.11 mi10911+1122418-152418-1510535(Top 37%)2553(Top 21%)2553(Top 149%)
20M20.00 mi1.36 mi10883+282449-312449-3111080(Top 39%)2977(Top 24%)2977(Top 173%)
21M21.00 mi1.00 mi10793+902444+52444+510265(Top 36%)2740(Top 22%)2740(Top 159%)
35K21.75 mi0.75 mi10783+102461-172461-1710824(Top 38%)3007(Top 25%)3007(Top 175%)
23M23.00 mi1.25 mi10667+1162439+222439+229866(Top 35%)2670(Top 22%)2670(Top 155%)
24M24.00 mi1.00 mi10540+1272408+312408+318336(Top 29%)2028(Top 17%)2028(Top 118%)
40K24.85 mi0.85 mi10458+822393+152393+159453(Top 33%)2654(Top 22%)2654(Top 154%)
25.2M25.20 mi0.35 mi10412+462392+12392+18887(Top 31%)2471(Top 20%)2471(Top 144%)
Finish26.22 mi1.02 mi10280+1322365+272365+277887(Top 28%)2028(Top 17%)2028(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

12428

Females

3121

F40-44

3121

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10368

Females

1996

F40-44

1996

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

12428

Females

3121

F40-44

3121

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11870

Females

2927

F40-44

2927

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11741

Females

2780

F40-44

2780

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10512

Females

2329

F40-44

2329

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10535

Females

2553

F40-44

2553

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11080

Females

2977

F40-44

2977

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10265

Females

2740

F40-44

2740

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10824

Females

3007

F40-44

3007

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9866

Females

2670

F40-44

2670

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8336

Females

2028

F40-44

2028

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9453

Females

2654

F40-44

2654

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8887

Females

2471

F40-44

2471

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7887

Females

2028

F40-44

2028

Passing Analysis

Category:
Athletes Passed
1786
Passed By
2167
Net Change
-383
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9897
5K → 10K136365-231#9897#10128
10K → 15K51781-730#10128#10858
15K → 20K106387-281#10858#11139
20K → Half1971-52#11139#11191
Half → 25K23668+168#11191#11023
25K → 30K283171+112#11023#10911
30K → 20M12496+28#10911#10883
20M → 21M14151+90#10883#10793
21M → 35K6050+10#10793#10783
35K → 23M16347+116#10783#10667
23M → 24M14215+127#10667#10540
24M → 40K10927+82#10540#10458
40K → 25.2M5711+46#10458#10412
25.2M → Finish15927+132#10412#10280
TOTALS17862167-383
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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