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BOSTON MARATHON 2024

James Kozey

Bib: 4737•M

TX

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0:00
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 22%
Division (M18-39)
#0 / 4849
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #3229
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:19
Rank: #3079 (+150)
5K → 10K
20:10 | 6:29/mi
15K· 9.32 mi
1:00:42
Rank: #3051 (+28)
10K → 15K
20:23 | 6:34/mi
20K· 12.43 mi
1:21:40
Rank: #3101 (-50)
15K → 20K
20:58 | 6:45/mi
Half· 13.11 mi
1:26:13
Rank: #3115 (-14)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:42:38
Rank: #3034 (+81)
Half → 25K
16:25 | 6:46/mi
30K· 18.64 mi
2:04:49
Rank: #3051 (-17)
25K → 30K
22:11 | 7:08/mi
20M
2:14:49
Rank: #3067 (-16)
30K → 20M
10:00 | 7:22/mi
21M
2:22:47
Rank: #3112 (-45)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:28:19
Rank: #3172 (-60)
21M → 35K
5:32 | 7:24/mi
23M
2:38:17
Rank: #3298 (-126)
35K → 23M
9:58 | 7:58/mi
24M
2:46:14
Rank: #3426 (-128)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
2:53:05
Rank: #3463 (-37)
24M → 40K
6:51 | 8:01/mi
25.2M
2:56:02
Rank: #3453 (+10)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:03:35
Rank: #3441 (+12)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:13
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:37:22
Pace7:26 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1220:096:2920:09
6:29
-
10K
6.21 mi10:43:2240:196:2920:10
6:29
0:00
15K
9.32 mi11:03:451:00:426:3120:23
6:34
+0:05
20K
12.43 mi11:24:431:21:406:3420:58
6:45
+0:11
Half
13.11 mi11:29:161:26:136:354:33
6:40
-0:05
25K
15.53 mi11:45:411:42:386:3616:25
6:46
+0:06
30K
18.64 mi12:07:522:04:496:4222:11
7:08
+0:22
20M
20.00 mi12:17:522:14:496:4410:00
7:22
+0:14
21M
21.00 mi12:25:502:22:476:487:58
7:58
+0:36
35K
21.75 mi12:31:222:28:196:495:32
7:24
-0:34
23M
23.00 mi12:41:202:38:176:539:58
7:58
+0:34
24M
24.00 mi12:49:172:46:146:567:57
7:57
-0:01
40K
24.85 mi12:56:082:53:056:586:51
8:01
+0:04
25.2M
25.20 mi12:59:052:56:026:592:57
8:33
+0:32
Finish
26.22 mi13:06:383:03:357:007:33
7:25
-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

6:29 /mi

Average Pace

7:00 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:38

56% of race

Time at Steady Pace

45:16

25% of race

Time at Slower Pace

35:41

19% of race

Average Pace: 7:00 /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 mi10:23:1220:096:2920:09
6:29
#3229
10K
6.21 mi10:43:2240:196:2920:10
6:29
#3079
15K
9.32 mi11:03:451:00:426:3120:23
6:34
#3051
20K
12.43 mi11:24:431:21:406:3420:58
6:45
#3101
Half
13.11 mi11:29:161:26:136:354:33
6:40
#3115
25K
15.53 mi11:45:411:42:386:3616:25
6:46
#3034
30K
18.64 mi12:07:522:04:496:4222:11
7:08
#3051
20M
20.00 mi12:17:522:14:496:4410:00
7:22
#3067
21M
21.00 mi12:25:502:22:476:487:58
7:58
#3112
35K
21.75 mi12:31:222:28:196:495:32
7:24
#3172
23M
23.00 mi12:41:202:38:176:539:58
7:58
#3298
24M
24.00 mi12:49:172:46:146:567:57
7:57
#3426
40K
24.85 mi12:56:082:53:056:586:51
8:01
#3463
25.2M
25.20 mi12:59:052:56:026:592:57
8:33
#3453
Finish
26.22 mi13:06:383:03:357:007:33
7:25
#3441
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3229307930793035(Top 12%)2894(Top 20%)2894(Top 60%)
10K6.21 mi3.10 mi3079+1502938+1412938+1412941(Top 12%)2807(Top 19%)2807(Top 58%)
15K9.32 mi3.11 mi3051+282911+272911+273035(Top 12%)2894(Top 20%)2894(Top 60%)
20K12.43 mi3.11 mi3101-502957-462957-463506(Top 14%)3310(Top 23%)3310(Top 68%)
Half13.11 mi0.68 mi3115-142972-152972-153553(Top 14%)3356(Top 23%)3356(Top 69%)
25K15.53 mi2.42 mi3034+812891+812891+813028(Top 12%)2852(Top 20%)2852(Top 59%)
30K18.64 mi3.11 mi3051-172893-22893-23519(Top 14%)3215(Top 22%)3215(Top 66%)
20M20.00 mi1.36 mi3067-162905-122905-123767(Top 15%)3374(Top 23%)3374(Top 70%)
21M21.00 mi1.00 mi3112-452935-302935-304020(Top 16%)3451(Top 24%)3451(Top 71%)
35K21.75 mi0.75 mi3172-602980-452980-454558(Top 18%)3828(Top 26%)3828(Top 79%)
23M23.00 mi1.25 mi3298-1263077-973077-975527(Top 22%)4269(Top 29%)4269(Top 88%)
24M24.00 mi1.00 mi3426-1283180-1033180-1036314(Top 25%)4620(Top 32%)4620(Top 95%)
40K24.85 mi0.85 mi3463-373200-203200-205825(Top 23%)4219(Top 29%)4219(Top 87%)
25.2M25.20 mi0.35 mi3453+103184+163184+164619(Top 18%)3514(Top 24%)3514(Top 72%)
Finish26.22 mi1.02 mi3441+123165+193165+195065(Top 20%)3815(Top 26%)3815(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3035

Males

2894

M18-39

2894

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

2941

Males

2807

M18-39

2807

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3035

Males

2894

M18-39

2894

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3506

Males

3310

M18-39

3310

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3553

Males

3356

M18-39

3356

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3028

Males

2852

M18-39

2852

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3519

Males

3215

M18-39

3215

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3767

Males

3374

M18-39

3374

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4020

Males

3451

M18-39

3451

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4558

Males

3828

M18-39

3828

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5527

Males

4269

M18-39

4269

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6314

Males

4620

M18-39

4620

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

5825

Males

4219

M18-39

4219

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4619

Males

3514

M18-39

3514

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5065

Males

3815

M18-39

3815

Passing Analysis

Category:
Athletes Passed
1105
Passed By
1317
Net Change
-212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3229
5K → 10K20858+150#3229#3079
10K → 15K12698+28#3079#3051
15K → 20K92142-50#3051#3101
20K → Half1226-14#3101#3115
Half → 25K13857+81#3115#3034
25K → 30K167184-17#3034#3051
30K → 20M7187-16#3051#3067
20M → 21M59104-45#3067#3112
21M → 35K3797-60#3112#3172
35K → 23M43169-126#3172#3298
23M → 24M31159-128#3298#3426
24M → 40K3673-37#3426#3463
40K → 25.2M3121+10#3463#3453
25.2M → Finish5442+12#3453#3441
TOTALS11051317-212
📊

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