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BOSTON MARATHON 2025

Aya Suzuki

Bib: 19671•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
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
8:08/mi
25:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:15:49
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:41:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:47:37
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:08:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:35:40
↑ 181↓ 1480.2%
20M
8:58/mi
2:47:51
↑ 64↓ 500.2%
21M
9:20/mi
2:57:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:03:39
↑ 17↓ 861.7%
23M
8:41/mi
3:14:31
↑ 23↓ 630.6%
24M
8:18/mi
3:22:49
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:29:44
↓ 200.3%
25.2M
8:59/mi
3:32:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:40:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:37
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:53:13
Pace8:38 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5825:168:0825:16
8:08
-
10K
6.21 mi11:42:1250:308:0825:14
8:07
-0:01
15K
9.32 mi12:07:311:15:498:0825:19
8:09
+0:02
20K
12.43 mi12:33:371:41:558:1226:06
8:24
+0:15
Half
13.11 mi12:39:191:47:378:135:42
8:21
-0:03
25K
15.53 mi13:00:002:08:188:1620:41
8:32
+0:11
30K
18.64 mi13:27:222:35:408:2127:22
8:49
+0:17
20M
20.00 mi13:39:332:47:518:2412:11
8:58
+0:09
21M
21.00 mi13:48:532:57:118:269:20
9:20
+0:22
35K
21.75 mi13:55:213:03:398:276:28
8:39
-0:41
23M
23.00 mi14:06:133:14:318:2710:52
8:41
+0:02
24M
24.00 mi14:14:313:22:498:278:18
8:18
-0:23
40K
24.85 mi14:21:263:29:448:266:55
8:05
-0:13
25.2M
25.20 mi14:24:323:32:508:273:06
8:59
+0:54
Finish
26.22 mi14:32:323:40:508:268:00
7:51
-1:08

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

7:51 /mi

Average Pace

8:26 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:31

69% of race

Time at Steady Pace

59:59

27% of race

Time at Slower Pace

9:20

4% of race

Average Pace: 8:25 /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 mi11:16:5825:168:0825:16
8:08
#17603
10K
6.21 mi11:42:1250:308:0825:14
8:07
#17467
15K
9.32 mi12:07:311:15:498:0825:19
8:09
#17331
20K
12.43 mi12:33:371:41:558:1226:06
8:24
#17351
Half
13.11 mi12:39:191:47:378:135:42
8:21
#17385
25K
15.53 mi13:00:002:08:188:1620:41
8:32
#17340
30K
18.64 mi13:27:222:35:408:2127:22
8:49
#17144
20M
20.00 mi13:39:332:47:518:2412:11
8:58
#17085
21M
21.00 mi13:48:532:57:118:269:20
9:20
#16926
35K
21.75 mi13:55:213:03:398:276:28
8:39
#16894
23M
23.00 mi14:06:133:14:318:2710:52
8:41
#16731
24M
24.00 mi14:14:313:22:498:278:18
8:18
#16559
40K
24.85 mi14:21:263:29:448:266:55
8:05
#16328
25.2M
25.20 mi14:24:323:32:508:273:06
8:59
#16251
Finish
26.22 mi14:32:323:40:508:268:00
7:51
#16074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi176036096609617084(Top 60%)5780(Top 47%)5780(Top 106%)
10K6.21 mi3.10 mi17467+1366018+786018+7817372(Top 61%)5920(Top 48%)5920(Top 108%)
15K9.32 mi3.11 mi17331+1365910+1085910+10817084(Top 60%)5780(Top 47%)5780(Top 106%)
20K12.43 mi3.11 mi17351-205946-365946-3617557(Top 62%)6079(Top 50%)6079(Top 111%)
Half13.11 mi0.68 mi17385-345971-255971-2518299(Top 64%)6476(Top 53%)6476(Top 118%)
25K15.53 mi2.42 mi17340+455962+95962+917377(Top 61%)6066(Top 50%)6066(Top 111%)
30K18.64 mi3.11 mi17144+1965899+635899+6316657(Top 59%)5833(Top 48%)5833(Top 107%)
20M20.00 mi1.36 mi17085+595902-35902-316618(Top 59%)5926(Top 48%)5926(Top 108%)
21M21.00 mi1.00 mi16926+1595830+725830+7215330(Top 54%)5360(Top 44%)5360(Top 98%)
35K21.75 mi0.75 mi16894+325831-15831-116351(Top 58%)5971(Top 49%)5971(Top 109%)
23M23.00 mi1.25 mi16731+1635770+615770+6114451(Top 51%)5040(Top 41%)5040(Top 92%)
24M24.00 mi1.00 mi16559+1725692+785692+7813298(Top 47%)4473(Top 37%)4473(Top 82%)
40K24.85 mi0.85 mi16328+2315595+975595+9710847(Top 38%)3356(Top 27%)3356(Top 61%)
25.2M25.20 mi0.35 mi16251+775554+415554+4111850(Top 42%)3926(Top 32%)3926(Top 72%)
Finish26.22 mi1.02 mi16074+1775474+805474+8011870(Top 42%)3878(Top 32%)3878(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17084

Females

5780

F18-39

5780

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17372

Females

5920

F18-39

5920

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17084

Females

5780

F18-39

5780

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17557

Females

6079

F18-39

6079

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

18299

Females

6476

F18-39

6476

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17377

Females

6066

F18-39

6066

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16657

Females

5833

F18-39

5833

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16618

Females

5926

F18-39

5926

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15330

Females

5360

F18-39

5360

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16351

Females

5971

F18-39

5971

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14451

Females

5040

F18-39

5040

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

13298

Females

4473

F18-39

4473

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10847

Females

3356

F18-39

3356

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11850

Females

3926

F18-39

3926

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11870

Females

3878

F18-39

3878

Passing Analysis

Category:
Athletes Passed
2607
Passed By
1078
Net Change
+1529
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17603
5K → 10K363227+136#17603#17467
10K → 15K267131+136#17467#17331
15K → 20K183203-20#17331#17351
20K → Half2155-34#17351#17385
Half → 25K189144+45#17385#17340
25K → 30K315119+196#17340#17144
30K → 20M11960+59#17144#17085
20M → 21M20142+159#17085#16926
21M → 35K7543+32#16926#16894
35K → 23M19229+163#16894#16731
23M → 24M18311+172#16731#16559
24M → 40K2310+231#16559#16328
40K → 25.2M803+77#16328#16251
25.2M → Finish18811+177#16251#16074
TOTALS26071078+1529
📊

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