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BOSTON MARATHON 2025

Irene Wong

Bib: 15406•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
7:30/mi
23:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:03
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:11:58
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:38:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:44:41
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:07:13
↑ 66↓ 880.2%
30K· 18.64 mi
10:25/mi
2:39:34
↑ 181↓ 1480.2%
20M
10:45/mi
2:54:10
↑ 64↓ 500.2%
21M
11:49/mi
3:05:59
↑ 106↓ 241.6%
35K· 21.75 mi
10:28/mi
3:13:49
↑ 17↓ 861.7%
23M
10:01/mi
3:26:21
↑ 23↓ 630.6%
24M
8:46/mi
3:35:07
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:42:45
↓ 200.3%
25.2M
9:46/mi
3:46:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:54:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:41
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time2:10:06
Pace9:55 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1723:187:3023:18
7:30
-
10K
6.21 mi11:19:0247:037:3423:45
7:39
+0:09
15K
9.32 mi11:43:571:11:587:4324:55
8:01
+0:22
20K
12.43 mi12:10:401:38:417:5626:43
8:36
+0:35
Half
13.11 mi12:16:401:44:417:596:00
8:48
+0:12
25K
15.53 mi12:39:122:07:138:1122:32
9:18
+0:30
30K
18.64 mi13:11:332:39:348:3432:21
10:25
+1:07
20M
20.00 mi13:26:092:54:108:4214:36
10:45
+0:20
21M
21.00 mi13:37:583:05:598:5111:49
11:49
+1:04
35K
21.75 mi13:45:483:13:498:557:50
10:28
-1:21
23M
23.00 mi13:58:203:26:218:5812:32
10:01
-0:27
24M
24.00 mi14:07:063:35:078:588:46
8:46
-1:15
40K
24.85 mi14:14:443:42:458:587:38
8:56
+0:10
25.2M
25.20 mi14:18:063:46:078:583:22
9:46
+0:50
Finish
26.22 mi14:26:463:54:478:588:40
8:30
-1:16

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

7:30 /mi

Average Pace

8:58 /mi

Slowest Pace

11:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:58

31% of race

Time at Steady Pace

1:20:19

34% of race

Time at Slower Pace

1:22:30

35% of race

Average Pace: 8:57 /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 mi10:55:1723:187:3023:18
7:30
#12278
10K
6.21 mi11:19:0247:037:3423:45
7:39
#12782
15K
9.32 mi11:43:571:11:587:4324:55
8:01
#13943
20K
12.43 mi12:10:401:38:417:5626:43
8:36
#15469
Half
13.11 mi12:16:401:44:417:596:00
8:48
#15818
25K
15.53 mi12:39:122:07:138:1122:32
9:18
#16897
30K
18.64 mi13:11:332:39:348:3432:21
10:25
#18510
20M
20.00 mi13:26:092:54:108:4214:36
10:45
#19066
21M
21.00 mi13:37:583:05:598:5111:49
11:49
#19471
35K
21.75 mi13:45:483:13:498:557:50
10:28
#19696
23M
23.00 mi13:58:203:26:218:5812:32
10:01
#19770
24M
24.00 mi14:07:063:35:078:588:46
8:46
#19613
40K
24.85 mi14:14:443:42:458:587:38
8:56
#19478
25.2M
25.20 mi14:18:063:46:078:583:22
9:46
#19425
Finish
26.22 mi14:26:463:54:478:588:40
8:30
#19290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi122782954295416214(Top 57%)5264(Top 43%)5264(Top 290%)
10K6.21 mi3.10 mi12782-5043222-2683222-26813434(Top 47%)3628(Top 30%)3628(Top 200%)
15K9.32 mi3.11 mi13943-11613935-7133935-71316214(Top 57%)5264(Top 43%)5264(Top 290%)
20K12.43 mi3.11 mi15469-15264844-9094844-90918853(Top 66%)6826(Top 56%)6826(Top 377%)
Half13.11 mi0.68 mi15818-3495043-1995043-19920889(Top 74%)7972(Top 65%)7972(Top 440%)
25K15.53 mi2.42 mi16897-10795704-6615704-66121152(Top 74%)8177(Top 67%)8177(Top 451%)
30K18.64 mi3.11 mi18510-16136666-9626666-96222739(Top 80%)9177(Top 75%)9177(Top 506%)
20M20.00 mi1.36 mi19066-5567019-3537019-35323059(Top 81%)9449(Top 77%)9449(Top 521%)
21M21.00 mi1.00 mi19471-4057270-2517270-25123249(Top 82%)9627(Top 79%)9627(Top 531%)
35K21.75 mi0.75 mi19696-2257413-1437413-14323107(Top 81%)9603(Top 79%)9603(Top 530%)
23M23.00 mi1.25 mi19770-747492-797492-7920529(Top 72%)8310(Top 68%)8310(Top 458%)
24M24.00 mi1.00 mi19613+1577432+607432+6016173(Top 57%)6042(Top 49%)6042(Top 333%)
40K24.85 mi0.85 mi19478+1357367+657367+6515943(Top 56%)6023(Top 49%)6023(Top 332%)
25.2M25.20 mi0.35 mi19425+537344+237344+2315994(Top 56%)6099(Top 50%)6099(Top 336%)
Finish26.22 mi1.02 mi19290+1357288+567288+5616287(Top 57%)6191(Top 51%)6191(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16214

Females

5264

F45-49

5264

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13434

Females

3628

F45-49

3628

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16214

Females

5264

F45-49

5264

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18853

Females

6826

F45-49

6826

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20889

Females

7972

F45-49

7972

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

21152

Females

8177

F45-49

8177

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22739

Females

9177

F45-49

9177

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

23059

Females

9449

F45-49

9449

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23249

Females

9627

F45-49

9627

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23107

Females

9603

F45-49

9603

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20529

Females

8310

F45-49

8310

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16173

Females

6042

F45-49

6042

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15943

Females

6023

F45-49

6023

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15994

Females

6099

F45-49

6099

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16287

Females

6191

F45-49

6191

Passing Analysis

Category:
Athletes Passed
847
Passed By
7859
Net Change
-7012
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12278
5K → 10K106610-504#12278#12782
10K → 15K281189-1161#12782#13943
15K → 20K311557-1526#13943#15469
20K → Half3352-349#15469#15818
Half → 25K191098-1079#15818#16897
25K → 30K271640-1613#16897#18510
30K → 20M19575-556#18510#19066
20M → 21M26431-405#19066#19471
21M → 35K15240-225#19471#19696
35K → 23M68142-74#19696#19770
23M → 24M1647+157#19770#19613
24M → 40K1383+135#19613#19478
40K → 25.2M618+53#19478#19425
25.2M → Finish1427+135#19425#19290
TOTALS8477859-7012
📊

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