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BOSTON MARATHON 2024

Justin Herold

Bib: 25085•M

NH

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered 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
9:45/mi
30:18
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
58:42
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:28:31
↑ 67↓ 78
20K· 12.43 mi
10:59/mi
2:02:39
↑ 106↓ 860.1%
Half· 13.11 mi
9:37/mi
2:09:13
↑ 19↓ 370.5%
25K· 15.53 mi
14:43/mi
2:44:53
↑ 66↓ 880.2%
30K· 18.64 mi
14:03/mi
3:28:32
↑ 181↓ 1480.2%
20M
11:52/mi
3:44:40
↑ 64↓ 500.2%
21M
16:03/mi
4:00:43
↑ 106↓ 241.6%
35K· 21.75 mi
13:49/mi
4:11:03
↑ 17↓ 861.7%
23M
12:12/mi
4:26:20
↑ 23↓ 630.6%
24M
13:22/mi
4:39:42
↓ 821.3%
40K· 24.85 mi
15:03/mi
4:52:34
↓ 200.3%
25.2M
14:15/mi
4:57:29
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
5:09:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:13
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time3:00:18
Pace13:45 /mi
📊Positive Split: 39.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1330:189:4530:18
9:45
-
10K
6.21 mi12:18:3758:429:2728:24
9:08
-0:37
15K
9.32 mi12:48:261:28:319:3029:49
9:36
+0:28
20K
12.43 mi13:22:342:02:399:5234:08
10:59
+1:23
Half
13.11 mi13:29:082:09:139:516:34
9:37
-1:22
25K
15.53 mi14:04:482:44:5310:3735:40
14:43
+5:06
30K
18.64 mi14:48:273:28:3211:1143:39
14:03
-0:40
20M
20.00 mi15:04:353:44:4011:1416:08
11:52
-2:11
21M
21.00 mi15:20:384:00:4311:2816:03
16:03
+4:11
35K
21.75 mi15:30:584:11:0311:3310:20
13:49
-2:14
23M
23.00 mi15:46:154:26:2011:3515:17
12:12
-1:37
24M
24.00 mi15:59:374:39:4211:3913:22
13:22
+1:10
40K
24.85 mi16:12:294:52:3411:4612:52
15:03
+1:41
25.2M
25.20 mi16:17:244:57:2911:484:55
14:15
-0:48
Finish
26.22 mi16:29:265:09:3111:4912:02
11:49
-2:26

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

9:08 /mi

Average Pace

11:49 /mi

Slowest Pace

16:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:13

42% of race

Time at Steady Pace

43:27

14% of race

Time at Slower Pace

2:16:51

44% of race

Average Pace: 11:48 /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 mi11:50:1330:189:4530:18
9:45
#22416
10K
6.21 mi12:18:3758:429:2728:24
9:08
#21398
15K
9.32 mi12:48:261:28:319:3029:49
9:36
#21218
20K
12.43 mi13:22:342:02:399:5234:08
10:59
#21664
Half
13.11 mi13:29:082:09:139:516:34
9:37
#21589
25K
15.53 mi14:04:482:44:5310:3735:40
14:43
#22822
30K
18.64 mi14:48:273:28:3211:1143:39
14:03
#23309
20M
20.00 mi15:04:353:44:4011:1416:08
11:52
#23153
21M
21.00 mi15:20:384:00:4311:2816:03
16:03
#23245
35K
21.75 mi15:30:584:11:0311:3310:20
13:49
#23285
23M
23.00 mi15:46:154:26:2011:3515:17
12:12
#23187
24M
24.00 mi15:59:374:39:4211:3913:22
13:22
#23217
40K
24.85 mi16:12:294:52:3411:4612:52
15:03
#23317
25.2M
25.20 mi16:17:244:57:2911:484:55
14:15
#23310
Finish
26.22 mi16:29:265:09:3111:4912:02
11:49
#23307
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22416132541325420944(Top 82%)12615(Top 87%)12615(Top 260%)
10K6.21 mi3.10 mi21398+101812763+49112763+49120311(Top 79%)12279(Top 84%)12279(Top 253%)
15K9.32 mi3.11 mi21218+18012691+7212691+7220944(Top 82%)12615(Top 87%)12615(Top 260%)
20K12.43 mi3.11 mi21664-44612888-19712888-19722606(Top 88%)13323(Top 91%)13323(Top 275%)
Half13.11 mi0.68 mi21589+7512855+3312855+3320445(Top 80%)12290(Top 84%)12290(Top 253%)
25K15.53 mi2.42 mi22822-123313427-57213427-57225253(Top 99%)14435(Top 99%)14435(Top 298%)
30K18.64 mi3.11 mi23309-48713599-17213599-17224247(Top 95%)13915(Top 95%)13915(Top 287%)
20M20.00 mi1.36 mi23153+15613500+9913500+9921123(Top 83%)12264(Top 84%)12264(Top 253%)
21M21.00 mi1.00 mi23245-9213537-3713537-3724511(Top 96%)13962(Top 96%)13962(Top 288%)
35K21.75 mi0.75 mi23285-4013553-1613553-1624113(Top 94%)13714(Top 94%)13714(Top 283%)
23M23.00 mi1.25 mi23187+9813486+6713486+6721163(Top 83%)12159(Top 83%)12159(Top 251%)
24M24.00 mi1.00 mi23217-3013491-513491-523549(Top 92%)13336(Top 91%)13336(Top 275%)
40K24.85 mi0.85 mi23317-10013537-4613537-4624561(Top 96%)13906(Top 95%)13906(Top 287%)
25.2M25.20 mi0.35 mi23310+713530+713530+721994(Top 86%)12486(Top 86%)12486(Top 257%)
Finish26.22 mi1.02 mi23307+313514+1613514+1622962(Top 90%)12999(Top 89%)12999(Top 268%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

20944

Males

12615

M18-39

12615

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20311

Males

12279

M18-39

12279

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

20944

Males

12615

M18-39

12615

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

22606

Males

13323

M18-39

13323

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

20445

Males

12290

M18-39

12290

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

25253

Males

14435

M18-39

14435

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

24247

Males

13915

M18-39

13915

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

21123

Males

12264

M18-39

12264

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

24511

Males

13962

M18-39

13962

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

24113

Males

13714

M18-39

13714

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

21163

Males

12159

M18-39

12159

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

23549

Males

13336

M18-39

13336

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

24561

Males

13906

M18-39

13906

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

21994

Males

12486

M18-39

12486

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

22962

Males

12999

M18-39

12999

Passing Analysis

Category:
Athletes Passed
1902
Passed By
2793
Net Change
-891
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22416
5K → 10K103315+1018#22416#21398
10K → 15K26484+180#21398#21218
15K → 20K65511-446#21218#21664
20K → Half794+75#21664#21589
Half → 25K151248-1233#21589#22822
25K → 30K36523-487#22822#23309
30K → 20M1626+156#23309#23153
20M → 21M27119-92#23153#23245
21M → 35K2363-40#23245#23285
35K → 23M1057+98#23285#23187
23M → 24M2858-30#23187#23217
24M → 40K7107-100#23217#23317
40K → 25.2M2215+7#23317#23310
25.2M → Finish3633+3#23310#23307
TOTALS19022793-891
📊

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