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BOSTON MARATHON 2025

Alyssa Woo

Bib: 15453•F

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 18%
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
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:06/mi
44:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:05:55
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:27:41
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:32:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:06/mi
1:49:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:29/mi
2:12:54
↑ 181↓ 1480.2%
20M
7:33/mi
2:23:10
↑ 64↓ 500.2%
21M
8:17/mi
2:31:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:36:58
↑ 17↓ 861.7%
23M
7:39/mi
2:46:33
↑ 23↓ 630.6%
24M
7:59/mi
2:54:32
↓ 821.3%
40K· 24.85 mi
7:29/mi
3:00:56
↓ 200.3%
25.2M
8:25/mi
3:03:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:27/mi
3:11:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:25
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:39:01
Pace7:33 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1822:067:0722:06
7:07
-
10K
6.21 mi11:16:2144:097:0622:03
7:06
-0:01
15K
9.32 mi11:38:071:05:557:0421:46
7:00
-0:06
20K
12.43 mi11:59:531:27:417:0321:46
7:00
0:00
Half
13.11 mi12:04:371:32:257:034:44
6:56
-0:04
25K
15.53 mi12:21:511:49:397:0417:14
7:06
+0:10
30K
18.64 mi12:45:062:12:547:0823:15
7:29
+0:23
20M
20.00 mi12:55:222:23:107:0910:16
7:33
+0:04
21M
21.00 mi13:03:392:31:277:138:17
8:17
+0:44
35K
21.75 mi13:09:102:36:587:135:31
7:22
-0:55
23M
23.00 mi13:18:452:46:337:149:35
7:39
+0:17
24M
24.00 mi13:26:442:54:327:167:59
7:59
+0:20
40K
24.85 mi13:33:083:00:567:176:24
7:29
-0:30
25.2M
25.20 mi13:36:023:03:507:182:54
8:25
+0:56
Finish
26.22 mi13:43:383:11:267:187:36
7:27
-0:58

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

6:56 /mi

Average Pace

7:18 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:39

57% of race

Time at Steady Pace

1:02:37

33% of race

Time at Slower Pace

19:10

10% of race

Average Pace: 7:18 /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 mi10:54:1822:067:0722:06
7:07
#8737
10K
6.21 mi11:16:2144:097:0622:03
7:06
#8664
15K
9.32 mi11:38:071:05:557:0421:46
7:00
#8283
20K
12.43 mi11:59:531:27:417:0321:46
7:00
#7856
Half
13.11 mi12:04:371:32:257:034:44
6:56
#7819
25K
15.53 mi12:21:511:49:397:0417:14
7:06
#7642
30K
18.64 mi12:45:062:12:547:0823:15
7:29
#7537
20M
20.00 mi12:55:222:23:107:0910:16
7:33
#7439
21M
21.00 mi13:03:392:31:277:138:17
8:17
#7459
35K
21.75 mi13:09:102:36:587:135:31
7:22
#7431
23M
23.00 mi13:18:452:46:337:149:35
7:39
#7393
24M
24.00 mi13:26:442:54:327:167:59
7:59
#7508
40K
24.85 mi13:33:083:00:567:176:24
7:29
#7425
25.2M
25.20 mi13:36:023:03:507:182:54
8:25
#7421
Finish
26.22 mi13:43:383:11:267:187:36
7:27
#7451
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8737126412647651(Top 27%)916(Top 7%)916(Top 17%)
10K6.21 mi3.10 mi8664+731247+171247+178636(Top 30%)1238(Top 10%)1238(Top 23%)
15K9.32 mi3.11 mi8283+3811115+1321115+1327651(Top 27%)916(Top 7%)916(Top 17%)
20K12.43 mi3.11 mi7856+427971+144971+1446879(Top 24%)751(Top 6%)751(Top 14%)
Half13.11 mi0.68 mi7819+37961+10961+107080(Top 25%)804(Top 7%)804(Top 15%)
25K15.53 mi2.42 mi7642+177923+38923+387000(Top 25%)866(Top 7%)866(Top 16%)
30K18.64 mi3.11 mi7537+105925-2925-27607(Top 27%)1242(Top 10%)1242(Top 23%)
20M20.00 mi1.36 mi7439+98934-9934-97352(Top 26%)1297(Top 11%)1297(Top 24%)
21M21.00 mi1.00 mi7459-20982-48982-489067(Top 32%)2209(Top 18%)2209(Top 40%)
35K21.75 mi0.75 mi7431+28996-14996-147636(Top 27%)1563(Top 13%)1563(Top 29%)
23M23.00 mi1.25 mi7393+381022-261022-267561(Top 27%)1652(Top 14%)1652(Top 30%)
24M24.00 mi1.00 mi7508-1151101-791101-7911058(Top 39%)3347(Top 27%)3347(Top 61%)
40K24.85 mi0.85 mi7425+83110111016662(Top 23%)1425(Top 12%)1425(Top 26%)
25.2M25.20 mi0.35 mi7421+41113-121113-128097(Top 29%)2151(Top 18%)2151(Top 39%)
Finish26.22 mi1.02 mi7451-301158-451158-458835(Top 31%)2473(Top 20%)2473(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7651

Females

916

F18-39

916

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8636

Females

1238

F18-39

1238

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7651

Females

916

F18-39

916

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6879

Females

751

F18-39

751

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7080

Females

804

F18-39

804

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7000

Females

866

F18-39

866

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7607

Females

1242

F18-39

1242

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7352

Females

1297

F18-39

1297

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9067

Females

2209

F18-39

2209

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7636

Females

1563

F18-39

1563

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7561

Females

1652

F18-39

1652

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

11058

Females

3347

F18-39

3347

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6662

Females

1425

F18-39

1425

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8097

Females

2151

F18-39

2151

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8835

Females

2473

F18-39

2473

Passing Analysis

Category:
Athletes Passed
2204
Passed By
918
Net Change
+1286
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8737
5K → 10K244171+73#8737#8664
10K → 15K39817+381#8664#8283
15K → 20K43710+427#8283#7856
20K → Half5013+37#7856#7819
Half → 25K20932+177#7819#7642
25K → 30K235130+105#7642#7537
30K → 20M14749+98#7537#7439
20M → 21M7696-20#7439#7459
21M → 35K6537+28#7459#7431
35K → 23M10870+38#7431#7393
23M → 24M39154-115#7393#7508
24M → 40K11229+83#7508#7425
40K → 25.2M2925+4#7425#7421
25.2M → Finish5585-30#7421#7451
TOTALS2204918+1286
📊

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