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BOSTON MARATHON 2025

Tammy Matsunami

Bib: 23366•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F60-64)
#0 / 624
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:56
Rank: #18999
Start → 5K
25:56 | 8:21/mi
10K· 6.21 mi
51:57
Rank: #18998 (+1)
5K → 10K
26:01 | 8:22/mi
15K· 9.32 mi
1:17:54
Rank: #18778 (+220)
10K → 15K
25:57 | 8:21/mi
20K· 12.43 mi
1:43:44
Rank: #18295 (+483)
15K → 20K
25:50 | 8:19/mi
Half· 13.11 mi
1:49:19
Rank: #18224 (+71)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:09:26
Rank: #17791 (+433)
Half → 25K
20:07 | 8:18/mi
30K· 18.64 mi
2:35:41
Rank: #17147 (+644)
25K → 30K
26:15 | 8:27/mi
20M
2:47:08
Rank: #16861 (+286)
30K → 20M
11:27 | 8:26/mi
21M
2:55:56
Rank: #16570 (+291)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
3:02:00
Rank: #16405 (+165)
21M → 35K
6:04 | 8:07/mi
23M
3:12:22
Rank: #16098 (+307)
35K → 23M
10:22 | 8:17/mi
24M
3:20:29
Rank: #15923 (+175)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:27:28
Rank: #15718 (+205)
24M → 40K
6:59 | 8:10/mi
25.2M
3:30:32
Rank: #15650 (+68)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:38:48
Rank: #15563 (+87)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:49:19
Pace8:20 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:29
Pace8:21 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2225:568:2125:56
8:21
-
10K
6.21 mi11:48:2351:578:2226:01
8:22
+0:01
15K
9.32 mi12:14:201:17:548:2125:57
8:21
-0:01
20K
12.43 mi12:40:101:43:448:2125:50
8:19
-0:02
Half
13.11 mi12:45:451:49:198:205:35
8:11
-0:08
25K
15.53 mi13:05:522:09:268:2020:07
8:18
+0:07
30K
18.64 mi13:32:072:35:418:2126:15
8:27
+0:09
20M
20.00 mi13:43:342:47:088:2111:27
8:26
-0:01
21M
21.00 mi13:52:222:55:568:238:48
8:48
+0:22
35K
21.75 mi13:58:263:02:008:226:04
8:07
-0:41
23M
23.00 mi14:08:483:12:228:2210:22
8:17
+0:10
24M
24.00 mi14:16:553:20:298:218:07
8:07
-0:10
40K
24.85 mi14:23:543:27:288:216:59
8:10
+0:03
25.2M
25.20 mi14:26:583:30:328:213:04
8:54
+0:44
Finish
26.22 mi14:35:143:38:488:218:16
8:07
-0:47

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

8:07 /mi

Average Pace

8:21 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:56

95% of race

Time at Steady Pace

11:52

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:22:2225:568:2125:56
8:21
#18999
10K
6.21 mi11:48:2351:578:2226:01
8:22
#18998
15K
9.32 mi12:14:201:17:548:2125:57
8:21
#18778
20K
12.43 mi12:40:101:43:448:2125:50
8:19
#18295
Half
13.11 mi12:45:451:49:198:205:35
8:11
#18224
25K
15.53 mi13:05:522:09:268:2020:07
8:18
#17791
30K
18.64 mi13:32:072:35:418:2126:15
8:27
#17147
20M
20.00 mi13:43:342:47:088:2111:27
8:26
#16861
21M
21.00 mi13:52:222:55:568:238:48
8:48
#16570
35K
21.75 mi13:58:263:02:008:226:04
8:07
#16405
23M
23.00 mi14:08:483:12:228:2210:22
8:17
#16098
24M
24.00 mi14:16:553:20:298:218:07
8:07
#15923
40K
24.85 mi14:23:543:27:288:216:59
8:10
#15718
25.2M
25.20 mi14:26:583:30:328:213:04
8:54
#15650
Finish
26.22 mi14:35:143:38:488:218:16
8:07
#15563
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi189996905690518394(Top 65%)6548(Top 54%)6548(Top 1049%)
10K6.21 mi3.10 mi18998+16901+46901+419030(Top 67%)6896(Top 56%)6896(Top 1105%)
15K9.32 mi3.11 mi18778+2206775+1266775+12618394(Top 65%)6548(Top 54%)6548(Top 1049%)
20K12.43 mi3.11 mi18295+4836508+2676508+26717013(Top 60%)5780(Top 47%)5780(Top 926%)
Half13.11 mi0.68 mi18224+716472+366472+3617199(Top 61%)5864(Top 48%)5864(Top 940%)
25K15.53 mi2.42 mi17791+4336232+2406232+24015909(Top 56%)5260(Top 43%)5260(Top 843%)
30K18.64 mi3.11 mi17147+6445901+3315901+33114456(Top 51%)4614(Top 38%)4614(Top 739%)
20M20.00 mi1.36 mi16861+2865755+1465755+14613351(Top 47%)4175(Top 34%)4175(Top 669%)
21M21.00 mi1.00 mi16570+2915620+1355620+13512337(Top 43%)3788(Top 31%)3788(Top 607%)
35K21.75 mi0.75 mi16405+1655545+755545+7513058(Top 46%)4206(Top 34%)4206(Top 674%)
23M23.00 mi1.25 mi16098+3075414+1315414+13111962(Top 42%)3729(Top 30%)3729(Top 598%)
24M24.00 mi1.00 mi15923+1755335+795335+7912074(Top 43%)3853(Top 32%)3853(Top 617%)
40K24.85 mi0.85 mi15718+2055239+965239+9611417(Top 40%)3626(Top 30%)3626(Top 581%)
25.2M25.20 mi0.35 mi15650+685221+185221+1811304(Top 40%)3678(Top 30%)3678(Top 589%)
Finish26.22 mi1.02 mi15563+875189+325189+3213710(Top 48%)4808(Top 39%)4808(Top 771%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18394

Females

6548

F60-64

6548

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

19030

Females

6896

F60-64

6896

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18394

Females

6548

F60-64

6548

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

17013

Females

5780

F60-64

5780

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17199

Females

5864

F60-64

5864

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15909

Females

5260

F60-64

5260

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14456

Females

4614

F60-64

4614

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13351

Females

4175

F60-64

4175

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12337

Females

3788

F60-64

3788

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13058

Females

4206

F60-64

4206

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11962

Females

3729

F60-64

3729

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12074

Females

3853

F60-64

3853

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11417

Females

3626

F60-64

3626

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11304

Females

3678

F60-64

3678

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13710

Females

4808

F60-64

4808

Passing Analysis

Category:
Athletes Passed
3886
Passed By
450
Net Change
+3436
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18999
5K → 10K253252+1#18999#18998
10K → 15K30888+220#18998#18778
15K → 20K50926+483#18778#18295
20K → Half8211+71#18295#18224
Half → 25K44411+433#18224#17791
25K → 30K6539+644#17791#17147
30K → 20M2882+286#17147#16861
20M → 21M2987+291#16861#16570
21M → 35K1661+165#16570#16405
35K → 23M3103+307#16405#16098
23M → 24M1838+175#16098#15923
24M → 40K2072+205#15923#15718
40K → 25.2M735+68#15718#15650
25.2M → Finish11225+87#15650#15563
TOTALS3886450+3436
📊

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