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BOSTON MARATHON 2025

Sasha Yap

Bib: 17723•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Masters (Masters Women)
#0 / 6759
Top 10%
Division (F40-44)
#0 / 1718
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:18/mi
22:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
45:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:08:53
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:32:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:37:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:20:44
↑ 181↓ 1480.2%
20M
8:00/mi
2:31:36
↑ 64↓ 500.2%
21M
8:19/mi
2:39:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:45:40
↑ 17↓ 861.7%
23M
10:21/mi
2:58:37
↑ 23↓ 630.6%
24M
7:35/mi
3:06:12
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:12:55
↓ 200.3%
25.2M
8:27/mi
3:15:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:35/mi
3:23:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:32
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:46:02
Pace8:05 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1222:417:1822:41
7:18
-
10K
6.21 mi11:36:0845:377:2022:56
7:23
+0:05
15K
9.32 mi11:59:241:08:537:2323:16
7:29
+0:06
20K
12.43 mi12:22:551:32:247:2623:31
7:34
+0:05
Half
13.11 mi12:28:031:37:327:265:08
7:31
-0:03
25K
15.53 mi12:46:351:56:047:2818:32
7:39
+0:08
30K
18.64 mi13:11:152:20:447:3324:40
7:56
+0:17
20M
20.00 mi13:22:072:31:367:3510:52
8:00
+0:04
21M
21.00 mi13:30:262:39:557:378:19
8:19
+0:19
35K
21.75 mi13:36:112:45:407:375:45
7:41
-0:38
23M
23.00 mi13:49:082:58:377:4612:57
10:21
+2:40
24M
24.00 mi13:56:433:06:127:467:35
7:35
-2:46
40K
24.85 mi14:03:263:12:557:466:43
7:51
+0:16
25.2M
25.20 mi14:06:213:15:507:462:55
8:27
+0:36
Finish
26.22 mi14:14:053:23:347:467:44
7:35
-0:52

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

7:18 /mi

Average Pace

7:46 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:59:23

88% of race

Time at Slower Pace

24:11

12% of race

Average Pace: 7:46 /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 mi11:13:1222:417:1822:41
7:18
#10398
10K
6.21 mi11:36:0845:377:2022:56
7:23
#10697
15K
9.32 mi11:59:241:08:537:2323:16
7:29
#10980
20K
12.43 mi12:22:551:32:247:2623:31
7:34
#11073
Half
13.11 mi12:28:031:37:327:265:08
7:31
#11135
25K
15.53 mi12:46:351:56:047:2818:32
7:39
#11104
30K
18.64 mi13:11:152:20:447:3324:40
7:56
#11025
20M
20.00 mi13:22:072:31:367:3510:52
8:00
#10930
21M
21.00 mi13:30:262:39:557:378:19
8:19
#10795
35K
21.75 mi13:36:112:45:407:375:45
7:41
#10754
23M
23.00 mi13:49:082:58:377:4612:57
10:21
#11698
24M
24.00 mi13:56:433:06:127:467:35
7:35
#11482
40K
24.85 mi14:03:263:12:557:466:43
7:51
#11363
25.2M
25.20 mi14:06:213:15:507:462:55
8:27
#11292
Finish
26.22 mi14:14:053:23:347:467:44
7:35
#11202
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi103981992199211692(Top 41%)2738(Top 22%)2738(Top 159%)
10K6.21 mi3.10 mi10697-2992158-1662158-16611038(Top 39%)2325(Top 19%)2325(Top 135%)
15K9.32 mi3.11 mi10980-2832309-1512309-15111692(Top 41%)2738(Top 22%)2738(Top 159%)
20K12.43 mi3.11 mi11073-932382-732382-7311358(Top 40%)2662(Top 22%)2662(Top 155%)
Half13.11 mi0.68 mi11135-622421-392421-3911972(Top 42%)2922(Top 24%)2922(Top 170%)
25K15.53 mi2.42 mi11104+312441-202441-2011106(Top 39%)2639(Top 22%)2639(Top 154%)
30K18.64 mi3.11 mi11025+792484-432484-4310962(Top 39%)2763(Top 23%)2763(Top 161%)
20M20.00 mi1.36 mi10930+952472+122472+1210447(Top 37%)2661(Top 22%)2661(Top 155%)
21M21.00 mi1.00 mi10795+1352446+262446+269363(Top 33%)2322(Top 19%)2322(Top 135%)
35K21.75 mi0.75 mi10754+412442+42442+410035(Top 35%)2621(Top 21%)2621(Top 153%)
23M23.00 mi1.25 mi11698-9442979-5372979-53721554(Top 76%)8844(Top 72%)8844(Top 515%)
24M24.00 mi1.00 mi11482+2162905+742905+748348(Top 29%)2040(Top 17%)2040(Top 119%)
40K24.85 mi0.85 mi11363+1192883+222883+229215(Top 32%)2559(Top 21%)2559(Top 149%)
25.2M25.20 mi0.35 mi11292+712870+132870+138641(Top 30%)2354(Top 19%)2354(Top 137%)
Finish26.22 mi1.02 mi11202+902855+152855+159868(Top 35%)2927(Top 24%)2927(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11692

Females

2738

F40-44

2738

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

11038

Females

2325

F40-44

2325

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11692

Females

2738

F40-44

2738

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11358

Females

2662

F40-44

2662

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11972

Females

2922

F40-44

2922

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11106

Females

2639

F40-44

2639

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10962

Females

2763

F40-44

2763

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10447

Females

2661

F40-44

2661

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9363

Females

2322

F40-44

2322

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

10035

Females

2621

F40-44

2621

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21554

Females

8844

F40-44

8844

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8348

Females

2040

F40-44

2040

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9215

Females

2559

F40-44

2559

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8641

Females

2354

F40-44

2354

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9868

Females

2927

F40-44

2927

Passing Analysis

Category:
Athletes Passed
1832
Passed By
2636
Net Change
-804
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10398
5K → 10K145444-299#10398#10697
10K → 15K93376-283#10697#10980
15K → 20K151244-93#10980#11073
20K → Half1476-62#11073#11135
Half → 25K183152+31#11135#11104
25K → 30K274195+79#11104#11025
30K → 20M15358+95#11025#10930
20M → 21M16934+135#10930#10795
21M → 35K7534+41#10795#10754
35K → 23M7951-944#10754#11698
23M → 24M2237+216#11698#11482
24M → 40K14425+119#11482#11363
40K → 25.2M8110+71#11363#11292
25.2M → Finish12030+90#11292#11202
TOTALS18322636-804
📊

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