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BOSTON MARATHON 2025

Koji Ikegami

Bib: 11012•M

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 (M55-59)
#0 / 1648
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:37
Rank: #10152
Start → 5K
22:37 | 7:17/mi
10K· 6.21 mi
45:28
Rank: #10477 (-325)
5K → 10K
22:51 | 7:21/mi
15K· 9.32 mi
1:08:36
Rank: #10718 (-241)
10K → 15K
23:08 | 7:27/mi
20K· 12.43 mi
1:32:33
Rank: #11196 (-478)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:37:38
Rank: #11205 (-9)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:03
Rank: #11637 (-432)
Half → 25K
19:25 | 8:00/mi
30K· 18.64 mi
2:23:17
Rank: #12129 (-492)
25K → 30K
26:14 | 8:27/mi
20M
2:35:02
Rank: #12336 (-207)
30K → 20M
11:45 | 8:39/mi
21M
2:43:56
Rank: #12349 (-13)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:50:04
Rank: #12379 (-30)
21M → 35K
6:08 | 8:12/mi
23M
3:00:38
Rank: #12377 (+2)
35K → 23M
10:34 | 8:26/mi
24M
3:08:49
Rank: #12380 (-3)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:15:52
Rank: #12341 (+39)
24M → 40K
7:03 | 8:15/mi
25.2M
3:19:02
Rank: #12341
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:27:29
Rank: #12443 (-102)
25.2M → Finish
8:27 | 8:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:38
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:49:51
Pace8:23 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0222:377:1722:37
7:17
-
10K
6.21 mi11:11:5345:287:1922:51
7:21
+0:04
15K
9.32 mi11:35:011:08:367:2223:08
7:27
+0:06
20K
12.43 mi11:58:581:32:337:2723:57
7:43
+0:16
Half
13.11 mi12:04:031:37:387:275:05
7:27
-0:16
25K
15.53 mi12:23:281:57:037:3219:25
8:00
+0:33
30K
18.64 mi12:49:422:23:177:4126:14
8:27
+0:27
20M
20.00 mi13:01:272:35:027:4511:45
8:39
+0:12
21M
21.00 mi13:10:212:43:567:488:54
8:54
+0:15
35K
21.75 mi13:16:292:50:047:496:08
8:12
-0:42
23M
23.00 mi13:27:033:00:387:5110:34
8:26
+0:14
24M
24.00 mi13:35:143:08:497:528:11
8:11
-0:15
40K
24.85 mi13:42:173:15:527:537:03
8:15
+0:04
25.2M
25.20 mi13:45:273:19:027:543:10
9:11
+0:56
Finish
26.22 mi13:53:543:27:297:558:27
8:18
-0:53

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

7:17 /mi

Average Pace

7:55 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:38

47% of race

Time at Steady Pace

1:26:02

41% of race

Time at Slower Pace

23:49

11% of race

Average Pace: 7:55 /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 mi10:49:0222:377:1722:37
7:17
#10152
10K
6.21 mi11:11:5345:287:1922:51
7:21
#10477
15K
9.32 mi11:35:011:08:367:2223:08
7:27
#10718
20K
12.43 mi11:58:581:32:337:2723:57
7:43
#11196
Half
13.11 mi12:04:031:37:387:275:05
7:27
#11205
25K
15.53 mi12:23:281:57:037:3219:25
8:00
#11637
30K
18.64 mi12:49:422:23:177:4126:14
8:27
#12129
20M
20.00 mi13:01:272:35:027:4511:45
8:39
#12336
21M
21.00 mi13:10:212:43:567:488:54
8:54
#12349
35K
21.75 mi13:16:292:50:047:496:08
8:12
#12379
23M
23.00 mi13:27:033:00:387:5110:34
8:26
#12377
24M
24.00 mi13:35:143:08:497:528:11
8:11
#12380
40K
24.85 mi13:42:173:15:527:537:03
8:15
#12341
25.2M
25.20 mi13:45:273:19:027:543:10
9:11
#12341
Finish
26.22 mi13:53:543:27:297:558:27
8:18
#12443
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi101528259825911290(Top 40%)8736(Top 54%)8736(Top 530%)
10K6.21 mi3.10 mi10477-3258411-1528411-15210784(Top 38%)8554(Top 53%)8554(Top 519%)
15K9.32 mi3.11 mi10718-2418501-908501-9011290(Top 40%)8736(Top 54%)8736(Top 530%)
20K12.43 mi3.11 mi11196-4788717-2168717-21612476(Top 44%)9182(Top 57%)9182(Top 557%)
Half13.11 mi0.68 mi11205-98718-18718-111283(Top 40%)8694(Top 54%)8694(Top 528%)
25K15.53 mi2.42 mi11637-4328885-1678885-16713938(Top 49%)9720(Top 60%)9720(Top 590%)
30K18.64 mi3.11 mi12129-4929035-1509035-15014406(Top 51%)9784(Top 61%)9784(Top 594%)
20M20.00 mi1.36 mi12336-2079091-569091-5614684(Top 52%)9769(Top 61%)9769(Top 593%)
21M21.00 mi1.00 mi12349-139057+349057+3412899(Top 45%)8799(Top 55%)8799(Top 534%)
35K21.75 mi0.75 mi12379-309045+129045+1213570(Top 48%)9063(Top 56%)9063(Top 550%)
23M23.00 mi1.25 mi12377+29011+349011+3412905(Top 45%)8651(Top 54%)8651(Top 525%)
24M24.00 mi1.00 mi12380-38987+248987+2412443(Top 44%)8394(Top 52%)8394(Top 509%)
40K24.85 mi0.85 mi12341+398934+538934+5311815(Top 42%)7966(Top 49%)7966(Top 483%)
25.2M25.20 mi0.35 mi123418920+148920+1412770(Top 45%)8355(Top 52%)8355(Top 507%)
Finish26.22 mi1.02 mi12443-1028942-228942-2214837(Top 52%)9407(Top 58%)9407(Top 571%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11290

Males

8736

M55-59

8736

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10784

Males

8554

M55-59

8554

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11290

Males

8736

M55-59

8736

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12476

Males

9182

M55-59

9182

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

11283

Males

8694

M55-59

8694

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13938

Males

9720

M55-59

9720

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14406

Males

9784

M55-59

9784

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14684

Males

9769

M55-59

9769

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12899

Males

8799

M55-59

8799

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

13570

Males

9063

M55-59

9063

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12905

Males

8651

M55-59

8651

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12443

Males

8394

M55-59

8394

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11815

Males

7966

M55-59

7966

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12770

Males

8355

M55-59

8355

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

14837

Males

9407

M55-59

9407

Passing Analysis

Category:
Athletes Passed
1110
Passed By
3400
Net Change
-2291
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10152
5K → 10K139463-325#10152#10477
10K → 15K103344-241#10477#10718
15K → 20K76554-478#10718#11196
20K → Half3140-9#11196#11205
Half → 25K70502-432#11205#11637
25K → 30K123615-492#11637#12129
30K → 20M64271-207#12129#12336
20M → 21M103116-13#12336#12349
21M → 35K5686-30#12349#12379
35K → 23M113111+2#12379#12377
23M → 24M7275-3#12377#12380
24M → 40K9051+39#12380#12341
40K → 25.2M26260#12341#12341
25.2M → Finish44146-102#12341#12443
TOTALS11103400-2291
📊

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