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BOSTON MARATHON 2025

Wing Yan Lai

Bib: 10966•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 13%
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
6:54/mi
21:26
↑ 97↓ 3451.5%
10K· 6.21 mi
6:46/mi
42:26
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:03:42
↑ 67↓ 78
20K· 12.43 mi
6:57/mi
1:25:18
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:30:00
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:46:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:10:03
↑ 181↓ 1480.2%
20M
7:32/mi
2:20:17
↑ 64↓ 500.2%
21M
8:06/mi
2:28:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:14/mi
2:33:48
↑ 17↓ 861.7%
23M
7:35/mi
2:43:18
↑ 23↓ 630.6%
24M
7:34/mi
2:50:52
↓ 821.3%
40K· 24.85 mi
7:43/mi
2:57:28
↓ 200.3%
25.2M
8:25/mi
3:00:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:08:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:00
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1521:266:5421:26
6:54
-
10K
6.21 mi11:09:1542:266:5021:00
6:46
-0:08
15K
9.32 mi11:30:311:03:426:5021:16
6:51
+0:05
20K
12.43 mi11:52:071:25:186:5221:36
6:57
+0:06
Half
13.11 mi11:56:491:30:006:524:42
6:53
-0:04
25K
15.53 mi12:13:431:46:546:5316:54
6:58
+0:05
30K
18.64 mi12:36:522:10:036:5923:09
7:27
+0:29
20M
20.00 mi12:47:062:20:177:0110:14
7:32
+0:05
21M
21.00 mi12:55:122:28:237:048:06
8:06
+0:34
35K
21.75 mi13:00:372:33:487:045:25
7:14
-0:52
23M
23.00 mi13:10:072:43:187:069:30
7:35
+0:21
24M
24.00 mi13:17:412:50:527:077:34
7:34
-0:01
40K
24.85 mi13:24:172:57:287:086:36
7:43
+0:09
25.2M
25.20 mi13:27:113:00:227:092:54
8:25
+0:42
Finish
26.22 mi13:34:513:08:027:117:40
7:31
-0:54

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

6:46 /mi

Average Pace

7:11 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:54

57% of race

Time at Steady Pace

1:03:32

34% of race

Time at Slower Pace

17:36

9% of race

Average Pace: 7:10 /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 mi10:48:1521:266:5421:26
6:54
#7086
10K
6.21 mi11:09:1542:266:5021:00
6:46
#6573
15K
9.32 mi11:30:311:03:426:5021:16
6:51
#6524
20K
12.43 mi11:52:071:25:186:5221:36
6:57
#6536
Half
13.11 mi11:56:491:30:006:524:42
6:53
#6559
25K
15.53 mi12:13:431:46:546:5316:54
6:58
#6435
30K
18.64 mi12:36:522:10:036:5923:09
7:27
#6516
20M
20.00 mi12:47:062:20:177:0110:14
7:32
#6476
21M
21.00 mi12:55:122:28:237:048:06
8:06
#6484
35K
21.75 mi13:00:372:33:487:045:25
7:14
#6446
23M
23.00 mi13:10:072:43:187:069:30
7:35
#6412
24M
24.00 mi13:17:412:50:527:077:34
7:34
#6425
40K
24.85 mi13:24:172:57:287:086:36
7:43
#6437
25.2M
25.20 mi13:27:113:00:227:092:54
8:25
#6433
Finish
26.22 mi13:34:513:08:027:117:40
7:31
#6501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi70867007006548(Top 23%)630(Top 5%)630(Top 12%)
10K6.21 mi3.10 mi6573+513590+110590+1105982(Top 21%)498(Top 4%)498(Top 9%)
15K9.32 mi3.11 mi6524+49608-18608-186548(Top 23%)630(Top 5%)630(Top 12%)
20K12.43 mi3.11 mi6536-12615-7615-76613(Top 23%)684(Top 6%)684(Top 13%)
Half13.11 mi0.68 mi6559-23622-7622-76890(Top 24%)748(Top 6%)748(Top 14%)
25K15.53 mi2.42 mi6435+124606+16606+166150(Top 22%)633(Top 5%)633(Top 12%)
30K18.64 mi3.11 mi6516-81654-48654-487393(Top 26%)1159(Top 9%)1159(Top 21%)
20M20.00 mi1.36 mi6476+40669-15669-157219(Top 25%)1221(Top 10%)1221(Top 22%)
21M21.00 mi1.00 mi6484-8691-22691-227968(Top 28%)1707(Top 14%)1707(Top 31%)
35K21.75 mi0.75 mi6446+38693-2693-26879(Top 24%)1230(Top 10%)1230(Top 22%)
23M23.00 mi1.25 mi6412+34712-19712-197180(Top 25%)1471(Top 12%)1471(Top 27%)
24M24.00 mi1.00 mi6425-13736-24736-248171(Top 29%)1925(Top 16%)1925(Top 35%)
40K24.85 mi0.85 mi6437-12765-29765-298229(Top 29%)2078(Top 17%)2078(Top 38%)
25.2M25.20 mi0.35 mi6433+4780-15780-158277(Top 29%)2157(Top 18%)2157(Top 39%)
Finish26.22 mi1.02 mi6501-68832-52832-529363(Top 33%)2691(Top 22%)2691(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6548

Females

630

F18-39

630

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5982

Females

498

F18-39

498

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6548

Females

630

F18-39

630

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6613

Females

684

F18-39

684

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6890

Females

748

F18-39

748

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6150

Females

633

F18-39

633

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7393

Females

1159

F18-39

1159

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7219

Females

1221

F18-39

1221

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7968

Females

1707

F18-39

1707

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6879

Females

1230

F18-39

1230

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7180

Females

1471

F18-39

1471

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8171

Females

1925

F18-39

1925

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8229

Females

2078

F18-39

2078

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8277

Females

2157

F18-39

2157

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9363

Females

2691

F18-39

2691

Passing Analysis

Category:
Athletes Passed
1735
Passed By
1150
Net Change
+585
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7086
5K → 10K54431+513#7086#6573
10K → 15K183134+49#6573#6524
15K → 20K133145-12#6524#6536
20K → Half2245-23#6536#6559
Half → 25K18460+124#6559#6435
25K → 30K155236-81#6435#6516
30K → 20M10363+40#6516#6476
20M → 21M6371-8#6476#6484
21M → 35K6325+38#6484#6446
35K → 23M9662+34#6446#6412
23M → 24M5871-13#6412#6425
24M → 40K5365-12#6425#6437
40K → 25.2M2824+4#6437#6433
25.2M → Finish50118-68#6433#6501
TOTALS17351150+585
📊

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