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BOSTON MARATHON 2025

Matthew Kanamori

Bib: 3438•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:55
Rank: #1379
Start → 5K
18:55 | 6:05/mi
10K· 6.21 mi
38:05
Rank: #1553 (-174)
5K → 10K
19:10 | 6:10/mi
15K· 9.32 mi
57:09
Rank: #1538 (+15)
10K → 15K
19:04 | 6:08/mi
20K· 12.43 mi
1:16:17
Rank: #1487 (+51)
15K → 20K
19:08 | 6:10/mi
Half· 13.11 mi
1:20:21
Rank: #1456 (+31)
20K → Half
4:04 | 5:58/mi
25K· 15.53 mi
1:35:10
Rank: #1380 (+76)
Half → 25K
14:49 | 6:07/mi
30K· 18.64 mi
1:54:56
Rank: #1350 (+30)
25K → 30K
19:46 | 6:22/mi
20M
2:03:47
Rank: #1349 (+1)
30K → 20M
8:51 | 6:31/mi
21M
2:10:33
Rank: #1332 (+17)
20M → 21M
6:46 | 6:46/mi
35K· 21.75 mi
2:15:12
Rank: #1314 (+18)
21M → 35K
4:39 | 6:13/mi
23M
2:23:14
Rank: #1267 (+47)
35K → 23M
8:02 | 6:25/mi
24M
2:29:35
Rank: #1258 (+9)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:35:06
Rank: #1248 (+10)
24M → 40K
5:31 | 6:27/mi
25.2M
2:37:32
Rank: #1240 (+8)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:43:46
Rank: #1223 (+17)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:21
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:23:25
Pace6:22 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5718:556:0518:55
6:05
-
10K
6.21 mi10:40:0738:056:0819:10
6:10
+0:05
15K
9.32 mi10:59:1157:096:0819:04
6:08
-0:02
20K
12.43 mi11:18:191:16:176:0819:08
6:10
+0:02
Half
13.11 mi11:22:231:20:216:084:04
5:58
-0:12
25K
15.53 mi11:37:121:35:106:0814:49
6:07
+0:09
30K
18.64 mi11:56:581:54:566:1019:46
6:22
+0:15
20M
20.00 mi12:05:492:03:476:118:51
6:31
+0:09
21M
21.00 mi12:12:352:10:336:136:46
6:46
+0:15
35K
21.75 mi12:17:142:15:126:134:39
6:13
-0:33
23M
23.00 mi12:25:162:23:146:148:02
6:25
+0:12
24M
24.00 mi12:31:372:29:356:146:21
6:21
-0:04
40K
24.85 mi12:37:082:35:066:145:31
6:27
+0:06
25.2M
25.20 mi12:39:342:37:326:152:26
7:03
+0:36
Finish
26.22 mi12:45:482:43:466:156:14
6:07
-0:56

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

5:58 /mi

Average Pace

6:15 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:34

94% of race

Time at Steady Pace

6:46

4% of race

Time at Slower Pace

2:26

1% of race

Average Pace: 6:15 /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 mi10:20:5718:556:0518:55
6:05
#1379
10K
6.21 mi10:40:0738:056:0819:10
6:10
#1553
15K
9.32 mi10:59:1157:096:0819:04
6:08
#1538
20K
12.43 mi11:18:191:16:176:0819:08
6:10
#1487
Half
13.11 mi11:22:231:20:216:084:04
5:58
#1456
25K
15.53 mi11:37:121:35:106:0814:49
6:07
#1380
30K
18.64 mi11:56:581:54:566:1019:46
6:22
#1350
20M
20.00 mi12:05:492:03:476:118:51
6:31
#1349
21M
21.00 mi12:12:352:10:336:136:46
6:46
#1332
35K
21.75 mi12:17:142:15:126:134:39
6:13
#1314
23M
23.00 mi12:25:162:23:146:148:02
6:25
#1267
24M
24.00 mi12:31:372:29:356:146:21
6:21
#1258
40K
24.85 mi12:37:082:35:066:145:31
6:27
#1248
25.2M
25.20 mi12:39:342:37:326:152:26
7:03
#1240
Finish
26.22 mi12:45:482:43:466:156:14
6:07
#1223
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1379131113111545(Top 5%)1468(Top 9%)1468(Top 26%)
10K6.21 mi3.10 mi1553-1741476-1651476-1651762(Top 6%)1675(Top 10%)1675(Top 30%)
15K9.32 mi3.11 mi1538+151462+141462+141545(Top 5%)1468(Top 9%)1468(Top 26%)
20K12.43 mi3.11 mi1487+511412+501412+501403(Top 5%)1329(Top 8%)1329(Top 24%)
Half13.11 mi0.68 mi1456+311381+311381+311025(Top 4%)972(Top 6%)972(Top 17%)
25K15.53 mi2.42 mi1380+761309+721309+721131(Top 4%)1067(Top 7%)1067(Top 19%)
30K18.64 mi3.11 mi1350+301275+341275+341406(Top 5%)1329(Top 8%)1329(Top 24%)
20M20.00 mi1.36 mi1349+11273+21273+21652(Top 6%)1560(Top 10%)1560(Top 28%)
21M21.00 mi1.00 mi1332+171258+151258+151410(Top 5%)1330(Top 8%)1330(Top 24%)
35K21.75 mi0.75 mi1314+181240+181240+181266(Top 4%)1196(Top 7%)1196(Top 21%)
23M23.00 mi1.25 mi1267+471194+461194+461195(Top 4%)1125(Top 7%)1125(Top 20%)
24M24.00 mi1.00 mi1258+91184+101184+101461(Top 5%)1365(Top 8%)1365(Top 24%)
40K24.85 mi0.85 mi1248+101174+101174+101427(Top 5%)1321(Top 8%)1321(Top 23%)
25.2M25.20 mi0.35 mi1240+81165+91165+91610(Top 6%)1467(Top 9%)1467(Top 26%)
Finish26.22 mi1.02 mi1223+171148+171148+171246(Top 4%)1164(Top 7%)1164(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1545

Males

1468

M18-39

1468

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1762

Males

1675

M18-39

1675

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1545

Males

1468

M18-39

1468

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1403

Males

1329

M18-39

1329

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1025

Males

972

M18-39

972

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1131

Males

1067

M18-39

1067

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1406

Males

1329

M18-39

1329

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1652

Males

1560

M18-39

1560

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1410

Males

1330

M18-39

1330

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1266

Males

1196

M18-39

1196

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1195

Males

1125

M18-39

1125

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1461

Males

1365

M18-39

1365

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1427

Males

1321

M18-39

1321

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1610

Males

1467

M18-39

1467

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1246

Males

1164

M18-39

1164

Passing Analysis

Category:
Athletes Passed
586
Passed By
430
Net Change
+156
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1379
5K → 10K16190-174#1379#1553
10K → 15K5742+15#1553#1538
15K → 20K8332+51#1538#1487
20K → Half310+31#1487#1456
Half → 25K859+76#1456#1380
25K → 30K6434+30#1380#1350
30K → 20M3635+1#1350#1349
20M → 21M3316+17#1349#1332
21M → 35K257+18#1332#1314
35K → 23M5811+47#1314#1267
23M → 24M3122+9#1267#1258
24M → 40K2212+10#1258#1248
40K → 25.2M168+8#1248#1240
25.2M → Finish2912+17#1240#1223
TOTALS586430+156
📊

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