Boston Marathon logo
BOSTON MARATHON 2024

Tomokazu Ishikawa

Bib: 4043•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 15%
Gender (Male)
#0 / 14578
Top 24%
Masters (Masters Men)
#0 / 9729
Top 12%
Division (M45-49)
#0 / 2218
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #3230
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:22
Rank: #3130 (+100)
5K → 10K
20:13 | 6:30/mi
15K· 9.32 mi
1:00:38
Rank: #3001 (+129)
10K → 15K
20:16 | 6:31/mi
20K· 12.43 mi
1:21:06
Rank: #2837 (+164)
15K → 20K
20:28 | 6:35/mi
Half· 13.11 mi
1:25:39
Rank: #2871 (-34)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:41:59
Rank: #2781 (+90)
Half → 25K
16:20 | 6:44/mi
30K· 18.64 mi
2:04:26
Rank: #2919 (-138)
25K → 30K
22:27 | 7:14/mi
20M
2:14:39
Rank: #3030 (-111)
30K → 20M
10:13 | 7:31/mi
21M
2:23:01
Rank: #3188 (-158)
20M → 21M
8:22 | 8:22/mi
35K· 21.75 mi
2:28:39
Rank: #3271 (-83)
21M → 35K
5:38 | 7:32/mi
23M
2:38:49
Rank: #3431 (-160)
35K → 23M
10:10 | 8:07/mi
24M
2:46:42
Rank: #3517 (-86)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
2:53:36
Rank: #3556 (-39)
24M → 40K
6:54 | 8:04/mi
25.2M
2:56:59
Rank: #3631 (-75)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:05:29
Rank: #3776 (-145)
25.2M → Finish
8:30 | 8:20/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:39
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:39:50
Pace7:37 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4320:096:2920:09
6:29
-
10K
6.21 mi10:43:5640:226:3020:13
6:30
+0:01
15K
9.32 mi11:04:121:00:386:3020:16
6:31
+0:01
20K
12.43 mi11:24:401:21:066:3220:28
6:35
+0:04
Half
13.11 mi11:29:131:25:396:324:33
6:40
+0:05
25K
15.53 mi11:45:331:41:596:3416:20
6:44
+0:04
30K
18.64 mi12:08:002:04:266:4122:27
7:14
+0:30
20M
20.00 mi12:18:132:14:396:4410:13
7:31
+0:17
21M
21.00 mi12:26:352:23:016:498:22
8:22
+0:51
35K
21.75 mi12:32:132:28:396:505:38
7:32
-0:50
23M
23.00 mi12:42:232:38:496:5410:10
8:07
+0:35
24M
24.00 mi12:50:162:46:426:577:53
7:53
-0:14
40K
24.85 mi12:57:102:53:366:596:54
8:04
+0:11
25.2M
25.20 mi13:00:332:56:597:013:23
9:49
+1:45
Finish
26.22 mi13:09:033:05:297:058:30
8:20
-1:29

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

6:29 /mi

Average Pace

7:05 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:59

55% of race

Time at Steady Pace

46:11

25% of race

Time at Slower Pace

37:19

20% of race

Average Pace: 7:04 /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 mi10:23:4320:096:2920:09
6:29
#3230
10K
6.21 mi10:43:5640:226:3020:13
6:30
#3130
15K
9.32 mi11:04:121:00:386:3020:16
6:31
#3001
20K
12.43 mi11:24:401:21:066:3220:28
6:35
#2837
Half
13.11 mi11:29:131:25:396:324:33
6:40
#2871
25K
15.53 mi11:45:331:41:596:3416:20
6:44
#2781
30K
18.64 mi12:08:002:04:266:4122:27
7:14
#2919
20M
20.00 mi12:18:132:14:396:4410:13
7:31
#3030
21M
21.00 mi12:26:352:23:016:498:22
8:22
#3188
35K
21.75 mi12:32:132:28:396:505:38
7:32
#3271
23M
23.00 mi12:42:232:38:496:5410:10
8:07
#3431
24M
24.00 mi12:50:162:46:426:577:53
7:53
#3517
40K
24.85 mi12:57:102:53:366:596:54
8:04
#3556
25.2M
25.20 mi13:00:332:56:597:013:23
9:49
#3631
Finish
26.22 mi13:09:033:05:297:058:30
8:20
#3776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3230308030802841(Top 11%)2715(Top 19%)2715(Top 122%)
10K6.21 mi3.10 mi3130+1002987+932987+933054(Top 12%)2913(Top 20%)2913(Top 131%)
15K9.32 mi3.11 mi3001+1292868+1192868+1192841(Top 11%)2715(Top 19%)2715(Top 122%)
20K12.43 mi3.11 mi2837+1642715+1532715+1532574(Top 10%)2459(Top 17%)2459(Top 111%)
Half13.11 mi0.68 mi2871-342747-322747-323564(Top 14%)3367(Top 23%)3367(Top 152%)
25K15.53 mi2.42 mi2781+902653+942653+942846(Top 11%)2689(Top 18%)2689(Top 121%)
30K18.64 mi3.11 mi2919-1382773-1202773-1203882(Top 15%)3525(Top 24%)3525(Top 159%)
20M20.00 mi1.36 mi3030-1112870-972870-974377(Top 17%)3824(Top 26%)3824(Top 172%)
21M21.00 mi1.00 mi3188-1583001-1313001-1315591(Top 22%)4457(Top 31%)4457(Top 201%)
35K21.75 mi0.75 mi3271-833067-663067-665162(Top 20%)4187(Top 29%)4187(Top 189%)
23M23.00 mi1.25 mi3431-1603197-1303197-1306343(Top 25%)4710(Top 32%)4710(Top 212%)
24M24.00 mi1.00 mi3517-863257-603257-605965(Top 23%)4431(Top 30%)4431(Top 200%)
40K24.85 mi0.85 mi3556-393280-233280-236117(Top 24%)4383(Top 30%)4383(Top 198%)
25.2M25.20 mi0.35 mi3631-753342-623342-6210036(Top 39%)6343(Top 44%)6343(Top 286%)
Finish26.22 mi1.02 mi3776-1453444-1023444-10210555(Top 41%)6748(Top 46%)6748(Top 304%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2841

Males

2715

M45-49

2715

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3054

Males

2913

M45-49

2913

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2841

Males

2715

M45-49

2715

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2574

Males

2459

M45-49

2459

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3564

Males

3367

M45-49

3367

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2846

Males

2689

M45-49

2689

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3882

Males

3525

M45-49

3525

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4377

Males

3824

M45-49

3824

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5591

Males

4457

M45-49

4457

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5162

Males

4187

M45-49

4187

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6343

Males

4710

M45-49

4710

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

5965

Males

4431

M45-49

4431

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6117

Males

4383

M45-49

4383

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10036

Males

6343

M45-49

6343

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10555

Males

6748

M45-49

6748

Passing Analysis

Category:
Athletes Passed
1082
Passed By
1628
Net Change
-546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3230
5K → 10K17272+100#3230#3130
10K → 15K18152+129#3130#3001
15K → 20K20440+164#3001#2837
20K → Half1448-34#2837#2871
Half → 25K13141+90#2871#2781
25K → 30K117255-138#2781#2919
30K → 20M49160-111#2919#3030
20M → 21M34192-158#3030#3188
21M → 35K28111-83#3188#3271
35K → 23M52212-160#3271#3431
23M → 24M33119-86#3431#3517
24M → 40K3473-39#3517#3556
40K → 25.2M1085-75#3556#3631
25.2M → Finish23168-145#3631#3776
TOTALS10821628-546
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing