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BOSTON MARATHON 2025

Sayaka Tsuda

Bib: 16347•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #15442
Start → 5K
24:27 | 7:52/mi
10K· 6.21 mi
50:07
Rank: #17009 (-1567)
5K → 10K
25:40 | 8:16/mi
15K· 9.32 mi
1:16:07
Rank: #17541 (-532)
10K → 15K
26:00 | 8:22/mi
20K· 12.43 mi
1:45:10
Rank: #19030 (-1489)
15K → 20K
29:03 | 9:21/mi
Half· 13.11 mi
1:50:46
Rank: #18955 (+75)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:11:23
Rank: #18638 (+317)
Half → 25K
20:37 | 8:30/mi
30K· 18.64 mi
2:38:28
Rank: #18134 (+504)
25K → 30K
27:05 | 8:43/mi
20M
2:50:30
Rank: #17934 (+200)
30K → 20M
12:02 | 8:51/mi
21M
2:59:48
Rank: #17769 (+165)
20M → 21M
9:18 | 9:18/mi
35K· 21.75 mi
3:06:10
Rank: #17672 (+97)
21M → 35K
6:22 | 8:31/mi
23M
3:17:06
Rank: #17470 (+202)
35K → 23M
10:56 | 8:44/mi
24M
3:25:57
Rank: #17423 (+47)
23M → 24M
8:51 | 8:51/mi
40K· 24.85 mi
3:33:33
Rank: #17354 (+69)
24M → 40K
7:36 | 8:53/mi
25.2M
3:36:58
Rank: #17343 (+11)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:45:48
Rank: #17330 (+13)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:46
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:55:02
Pace8:47 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4424:277:5224:27
7:52
-
10K
6.21 mi11:23:2450:078:0425:40
8:16
+0:24
15K
9.32 mi11:49:241:16:078:1026:00
8:22
+0:06
20K
12.43 mi12:18:271:45:108:2829:03
9:21
+0:59
Half
13.11 mi12:24:031:50:468:275:36
8:12
-1:09
25K
15.53 mi12:44:402:11:238:2720:37
8:30
+0:18
30K
18.64 mi13:11:452:38:288:3027:05
8:43
+0:13
20M
20.00 mi13:23:472:50:308:3112:02
8:51
+0:08
21M
21.00 mi13:33:052:59:488:349:18
9:18
+0:27
35K
21.75 mi13:39:273:06:108:346:22
8:31
-0:47
23M
23.00 mi13:50:233:17:068:3410:56
8:44
+0:13
24M
24.00 mi13:59:143:25:578:358:51
8:51
+0:07
40K
24.85 mi14:06:503:33:338:367:36
8:53
+0:02
25.2M
25.20 mi14:10:153:36:588:373:25
9:54
+1:01
Finish
26.22 mi14:19:053:45:488:378:50
8:40
-1:14

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

7:52 /mi

Average Pace

8:37 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:43

36% of race

Time at Steady Pace

1:42:19

45% of race

Time at Slower Pace

41:46

18% of race

Average Pace: 8:37 /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 mi10:57:4424:277:5224:27
7:52
#15442
10K
6.21 mi11:23:2450:078:0425:40
8:16
#17009
15K
9.32 mi11:49:241:16:078:1026:00
8:22
#17541
20K
12.43 mi12:18:271:45:108:2829:03
9:21
#19030
Half
13.11 mi12:24:031:50:468:275:36
8:12
#18955
25K
15.53 mi12:44:402:11:238:2720:37
8:30
#18638
30K
18.64 mi13:11:452:38:288:3027:05
8:43
#18134
20M
20.00 mi13:23:472:50:308:3112:02
8:51
#17934
21M
21.00 mi13:33:052:59:488:349:18
9:18
#17769
35K
21.75 mi13:39:273:06:108:346:22
8:31
#17672
23M
23.00 mi13:50:233:17:068:3410:56
8:44
#17470
24M
24.00 mi13:59:143:25:578:358:51
8:51
#17423
40K
24.85 mi14:06:503:33:338:367:36
8:53
#17354
25.2M
25.20 mi14:10:153:36:588:373:25
9:54
#17343
Finish
26.22 mi14:19:053:45:488:378:50
8:40
#17330
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154424806480618512(Top 65%)6611(Top 54%)6611(Top 121%)
10K6.21 mi3.10 mi17009-15675733-9275733-92718317(Top 64%)6496(Top 53%)6496(Top 119%)
15K9.32 mi3.11 mi17541-5326035-3026035-30218512(Top 65%)6611(Top 54%)6611(Top 121%)
20K12.43 mi3.11 mi19030-14896920-8856920-88522417(Top 79%)8815(Top 72%)8815(Top 161%)
Half13.11 mi0.68 mi18955+756883+376883+3717385(Top 61%)5984(Top 49%)5984(Top 109%)
25K15.53 mi2.42 mi18638+3176715+1686715+16817236(Top 61%)5994(Top 49%)5994(Top 110%)
30K18.64 mi3.11 mi18134+5046474+2416474+24116109(Top 57%)5527(Top 45%)5527(Top 101%)
20M20.00 mi1.36 mi17934+2006386+886386+8815993(Top 56%)5593(Top 46%)5593(Top 102%)
21M21.00 mi1.00 mi17769+1656307+796307+7915183(Top 53%)5287(Top 43%)5287(Top 97%)
35K21.75 mi0.75 mi17672+976273+346273+3415575(Top 55%)5565(Top 46%)5565(Top 102%)
23M23.00 mi1.25 mi17470+2026209+646209+6414759(Top 52%)5209(Top 43%)5209(Top 95%)
24M24.00 mi1.00 mi17423+476204+56204+516611(Top 58%)6273(Top 51%)6273(Top 115%)
40K24.85 mi0.85 mi17354+696188+166188+1615730(Top 55%)5914(Top 48%)5914(Top 108%)
25.2M25.20 mi0.35 mi17343+116191-36191-316640(Top 59%)6408(Top 52%)6408(Top 117%)
Finish26.22 mi1.02 mi17330+136210-196210-1917303(Top 61%)6706(Top 55%)6706(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18512

Females

6611

F18-39

6611

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18317

Females

6496

F18-39

6496

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18512

Females

6611

F18-39

6611

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

22417

Females

8815

F18-39

8815

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17385

Females

5984

F18-39

5984

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17236

Females

5994

F18-39

5994

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

16109

Females

5527

F18-39

5527

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15993

Females

5593

F18-39

5593

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15183

Females

5287

F18-39

5287

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15575

Females

5565

F18-39

5565

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

14759

Females

5209

F18-39

5209

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16611

Females

6273

F18-39

6273

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15730

Females

5914

F18-39

5914

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16640

Females

6408

F18-39

6408

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17303

Females

6706

F18-39

6706

Passing Analysis

Category:
Athletes Passed
2148
Passed By
4036
Net Change
-1888
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15442
5K → 10K291596-1567#15442#17009
10K → 15K70602-532#17009#17541
15K → 20K171506-1489#17541#19030
20K → Half794+75#19030#18955
Half → 25K33720+317#18955#18638
25K → 30K54541+504#18638#18134
30K → 20M22222+200#18134#17934
20M → 21M19429+165#17934#17769
21M → 35K11316+97#17769#17672
35K → 23M22624+202#17672#17470
23M → 24M10154+47#17470#17423
24M → 40K10637+69#17423#17354
40K → 25.2M3625+11#17354#17343
25.2M → Finish7360+13#17343#17330
TOTALS21484036-1888
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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