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BOSTON MARATHON 2025

Shinobu Mizuguchi

Bib: 25288•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:05
Rank: #24804
Start → 5K
30:05 | 9:41/mi
10K· 6.21 mi
1:00:36
Rank: #24866 (-62)
5K → 10K
30:31 | 9:49/mi
15K· 9.32 mi
1:31:29
Rank: #24855 (+11)
10K → 15K
30:53 | 9:56/mi
20K· 12.43 mi
2:02:41
Rank: #24696 (+159)
15K → 20K
31:12 | 10:03/mi
Half· 13.11 mi
2:09:21
Rank: #24671 (+25)
20K → Half
6:40 | 9:46/mi
25K· 15.53 mi
2:34:05
Rank: #24538 (+133)
Half → 25K
24:44 | 10:12/mi
30K· 18.64 mi
3:06:40
Rank: #24263 (+275)
25K → 30K
32:35 | 10:29/mi
20M
3:21:11
Rank: #24137 (+126)
30K → 20M
14:31 | 10:41/mi
21M
3:32:28
Rank: #24042 (+95)
20M → 21M
11:17 | 11:17/mi
35K· 21.75 mi
3:39:43
Rank: #23935 (+107)
21M → 35K
7:15 | 9:41/mi
23M
3:52:43
Rank: #23800 (+135)
35K → 23M
13:00 | 10:23/mi
24M
4:02:37
Rank: #23695 (+105)
23M → 24M
9:54 | 9:54/mi
40K· 24.85 mi
4:11:31
Rank: #23632 (+63)
24M → 40K
8:54 | 10:25/mi
25.2M
4:15:29
Rank: #23611 (+21)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:25:44
Rank: #23569 (+42)
25.2M → Finish
10:15 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:21
Pace9:52 /mi
2nd Half
Distance13.11 mi
Time2:16:23
Pace10:24 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:5530:059:4130:05
9:41
-
10K
6.21 mi12:00:261:00:369:4530:31
9:49
+0:08
15K
9.32 mi12:31:191:31:299:4930:53
9:56
+0:07
20K
12.43 mi13:02:312:02:419:5231:12
10:03
+0:07
Half
13.11 mi13:09:112:09:219:526:40
9:46
-0:17
25K
15.53 mi13:33:552:34:059:5524:44
10:12
+0:26
30K
18.64 mi14:06:303:06:4010:0132:35
10:29
+0:17
20M
20.00 mi14:21:013:21:1110:0414:31
10:41
+0:12
21M
21.00 mi14:32:183:32:2810:0711:17
11:17
+0:36
35K
21.75 mi14:39:333:39:4310:067:15
9:41
-1:36
23M
23.00 mi14:52:333:52:4310:0713:00
10:23
+0:42
24M
24.00 mi15:02:274:02:3710:079:54
9:54
-0:29
40K
24.85 mi15:11:214:11:3110:078:54
10:25
+0:31
25.2M
25.20 mi15:15:194:15:2910:083:58
11:30
+1:05
Finish
26.22 mi15:25:344:25:4410:0910:15
10:04
-1:26

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

9:41 /mi

Average Pace

10:09 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:55:58

89% of race

Time at Steady Pace

25:48

10% of race

Time at Slower Pace

3:58

1% of race

Average Pace: 10:08 /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 mi11:29:5530:059:4130:05
9:41
#24804
10K
6.21 mi12:00:261:00:369:4530:31
9:49
#24866
15K
9.32 mi12:31:191:31:299:4930:53
9:56
#24855
20K
12.43 mi13:02:312:02:419:5231:12
10:03
#24696
Half
13.11 mi13:09:112:09:219:526:40
9:46
#24671
25K
15.53 mi13:33:552:34:059:5524:44
10:12
#24538
30K
18.64 mi14:06:303:06:4010:0132:35
10:29
#24263
20M
20.00 mi14:21:013:21:1110:0414:31
10:41
#24137
21M
21.00 mi14:32:183:32:2810:0711:17
11:17
#24042
35K
21.75 mi14:39:333:39:4310:067:15
9:41
#23935
23M
23.00 mi14:52:333:52:4310:0713:00
10:23
#23800
24M
24.00 mi15:02:274:02:3710:079:54
9:54
#23695
40K
24.85 mi15:11:214:11:3110:078:54
10:25
#23632
25.2M
25.20 mi15:15:194:15:2910:083:58
11:30
#23611
Finish
26.22 mi15:25:344:25:4410:0910:15
10:04
#23569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi24804101111011124882(Top 88%)10157(Top 83%)10157(Top 1628%)
10K6.21 mi3.10 mi24866-6210157-4610157-4624916(Top 88%)10186(Top 83%)10186(Top 1632%)
15K9.32 mi3.11 mi24855+1110143+1410143+1424882(Top 88%)10157(Top 83%)10157(Top 1628%)
20K12.43 mi3.11 mi24696+15910070+7310070+7324317(Top 86%)9889(Top 81%)9889(Top 1585%)
Half13.11 mi0.68 mi24671+2510059+1110059+1124326(Top 86%)9888(Top 81%)9888(Top 1585%)
25K15.53 mi2.42 mi24538+13310000+5910000+5923736(Top 84%)9609(Top 79%)9609(Top 1540%)
30K18.64 mi3.11 mi24263+2759873+1279873+12722921(Top 81%)9276(Top 76%)9276(Top 1487%)
20M20.00 mi1.36 mi24137+1269830+439830+4322925(Top 81%)9384(Top 77%)9384(Top 1504%)
21M21.00 mi1.00 mi24042+959792+389792+3822132(Top 78%)9046(Top 74%)9046(Top 1450%)
35K21.75 mi0.75 mi23935+1079748+449748+4421016(Top 74%)8520(Top 70%)8520(Top 1365%)
23M23.00 mi1.25 mi23800+1359691+579691+5721705(Top 76%)8921(Top 73%)8921(Top 1430%)
24M24.00 mi1.00 mi23695+1059649+429649+4221089(Top 74%)8654(Top 71%)8654(Top 1387%)
40K24.85 mi0.85 mi23632+639634+159634+1521691(Top 76%)9041(Top 74%)9041(Top 1449%)
25.2M25.20 mi0.35 mi23611+219628+69628+622104(Top 78%)9214(Top 75%)9214(Top 1477%)
Finish26.22 mi1.02 mi23569+429624+49624+423117(Top 81%)9724(Top 80%)9724(Top 1558%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

24882

Females

10157

F60-64

10157

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

24916

Females

10186

F60-64

10186

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

24882

Females

10157

F60-64

10157

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

24317

Females

9889

F60-64

9889

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24326

Females

9888

F60-64

9888

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23736

Females

9609

F60-64

9609

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

22921

Females

9276

F60-64

9276

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

22925

Females

9384

F60-64

9384

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22132

Females

9046

F60-64

9046

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

21016

Females

8520

F60-64

8520

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21705

Females

8921

F60-64

8921

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

21089

Females

8654

F60-64

8654

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21691

Females

9041

F60-64

9041

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22104

Females

9214

F60-64

9214

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

23117

Females

9724

F60-64

9724

Passing Analysis

Category:
Athletes Passed
1827
Passed By
592
Net Change
+1235
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24804
5K → 10K178240-62#24804#24866
10K → 15K128117+11#24866#24855
15K → 20K22364+159#24855#24696
20K → Half3611+25#24696#24671
Half → 25K17138+133#24671#24538
25K → 30K30025+275#24538#24263
30K → 20M14317+126#24263#24137
20M → 21M11318+95#24137#24042
21M → 35K1125+107#24042#23935
35K → 23M1438+135#23935#23800
23M → 24M1050+105#23800#23695
24M → 40K7411+63#23695#23632
40K → 25.2M287+21#23632#23611
25.2M → Finish7331+42#23611#23569
TOTALS1827592+1235
📊

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