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BOSTON MARATHON 2025

Masaki Mibayashi

Bib: 7237•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M50-54)
#0 / 1996
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
7:48/mi
24:15
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:20
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:36:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:41:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:41/mi
1:59:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:24:01
↑ 181↓ 1480.2%
20M
7:51/mi
2:34:41
↑ 64↓ 500.2%
21M
8:34/mi
2:43:15
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
2:49:26
↑ 17↓ 861.7%
23M
8:24/mi
2:59:57
↑ 23↓ 630.6%
24M
8:27/mi
3:08:24
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:15:56
↓ 200.3%
25.2M
9:34/mi
3:19:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:26/mi
3:27:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:14
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:46:36
Pace8:08 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:32:5024:157:4824:15
7:48
-
10K
6.21 mi10:56:5348:187:4624:03
7:44
-0:04
15K
9.32 mi11:20:551:12:207:4624:02
7:44
0:00
20K
12.43 mi11:44:431:36:087:4423:48
7:40
-0:04
Half
13.11 mi11:49:491:41:147:435:06
7:29
-0:11
25K
15.53 mi12:08:271:59:527:4318:38
7:41
+0:12
30K
18.64 mi12:32:362:24:017:4424:09
7:46
+0:05
20M
20.00 mi12:43:162:34:417:4410:40
7:51
+0:05
21M
21.00 mi12:51:502:43:157:468:34
8:34
+0:43
35K
21.75 mi12:58:012:49:267:476:11
8:16
-0:18
23M
23.00 mi13:08:322:59:577:4910:31
8:24
+0:08
24M
24.00 mi13:16:593:08:247:518:27
8:27
+0:03
40K
24.85 mi13:24:313:15:567:537:32
8:49
+0:22
25.2M
25.20 mi13:27:493:19:147:543:18
9:34
+0:45
Finish
26.22 mi13:36:253:27:507:568:36
8:26
-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

7:29 /mi

Average Pace

7:56 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:06

2% of race

Time at Steady Pace

2:29:35

72% of race

Time at Slower Pace

53:09

26% of race

Average Pace: 7:56 /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 mi10:32:5024:157:4824:15
7:48
#14841
10K
6.21 mi10:56:5348:187:4624:03
7:44
#14514
15K
9.32 mi11:20:551:12:207:4624:02
7:44
#14292
20K
12.43 mi11:44:431:36:087:4423:48
7:40
#13666
Half
13.11 mi11:49:491:41:147:435:06
7:29
#13550
25K
15.53 mi12:08:271:59:527:4318:38
7:41
#13153
30K
18.64 mi12:32:362:24:017:4424:09
7:46
#12474
20M
20.00 mi12:43:162:34:417:4410:40
7:51
#12187
21M
21.00 mi12:51:502:43:157:468:34
8:34
#12088
35K
21.75 mi12:58:012:49:267:476:11
8:16
#12156
23M
23.00 mi13:08:322:59:577:4910:31
8:24
#12148
24M
24.00 mi13:16:593:08:247:518:27
8:27
#12255
40K
24.85 mi13:24:313:15:567:537:32
8:49
#12357
25.2M
25.20 mi13:27:493:19:147:543:18
9:34
#12389
Finish
26.22 mi13:36:253:27:507:568:36
8:26
#12529
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14841103621036213809(Top 49%)9860(Top 61%)9860(Top 494%)
10K6.21 mi3.10 mi14514+32710228+13410228+13414242(Top 50%)10097(Top 63%)10097(Top 506%)
15K9.32 mi3.11 mi14292+22210116+11210116+11213809(Top 49%)9860(Top 61%)9860(Top 494%)
20K12.43 mi3.11 mi13666+6269807+3099807+30912032(Top 42%)8991(Top 56%)8991(Top 450%)
Half13.11 mi0.68 mi13550+1169753+549753+5411472(Top 40%)8782(Top 55%)8782(Top 440%)
25K15.53 mi2.42 mi13153+3979554+1999554+19911421(Top 40%)8587(Top 53%)8587(Top 430%)
30K18.64 mi3.11 mi12474+6799186+3689186+3689730(Top 34%)7553(Top 47%)7553(Top 378%)
20M20.00 mi1.36 mi12187+2879027+1599027+1599367(Top 33%)7194(Top 45%)7194(Top 360%)
21M21.00 mi1.00 mi12088+998939+888939+8810886(Top 38%)7825(Top 49%)7825(Top 392%)
35K21.75 mi0.75 mi12156-688944-58944-513997(Top 49%)9282(Top 58%)9282(Top 465%)
23M23.00 mi1.25 mi12148+88907+378907+3712653(Top 45%)8539(Top 53%)8539(Top 428%)
24M24.00 mi1.00 mi12255-1078925-188925-1814176(Top 50%)9218(Top 57%)9218(Top 462%)
40K24.85 mi0.85 mi12357-1028946-218946-2115217(Top 54%)9528(Top 59%)9528(Top 477%)
25.2M25.20 mi0.35 mi12389-328946894614876(Top 52%)9334(Top 58%)9334(Top 468%)
Finish26.22 mi1.02 mi12529-1408981-358981-3515805(Top 56%)9841(Top 61%)9841(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13809

Males

9860

M50-54

9860

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14242

Males

10097

M50-54

10097

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13809

Males

9860

M50-54

9860

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

12032

Males

8991

M50-54

8991

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11472

Males

8782

M50-54

8782

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11421

Males

8587

M50-54

8587

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9730

Males

7553

M50-54

7553

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9367

Males

7194

M50-54

7194

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10886

Males

7825

M50-54

7825

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13997

Males

9282

M50-54

9282

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12653

Males

8539

M50-54

8539

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14176

Males

9218

M50-54

9218

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15217

Males

9528

M50-54

9528

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14876

Males

9334

M50-54

9334

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15805

Males

9841

M50-54

9841

Passing Analysis

Category:
Athletes Passed
3399
Passed By
1087
Net Change
+2312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14841
5K → 10K484157+327#14841#14514
10K → 15K31694+222#14514#14292
15K → 20K6359+626#14292#13666
20K → Half1182+116#13666#13550
Half → 25K4047+397#13550#13153
25K → 30K68910+679#13153#12474
30K → 20M2947+287#12474#12187
20M → 21M15354+99#12187#12088
21M → 35K46114-68#12088#12156
35K → 23M111103+8#12156#12148
23M → 24M48155-107#12148#12255
24M → 40K42144-102#12255#12357
40K → 25.2M1850-32#12357#12389
25.2M → Finish41181-140#12389#12529
TOTALS33991087+2312
📊

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