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BOSTON MARATHON 2024

David Kazantsev

Bib: 28470•M

MA

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
8:57/mi
27:47
↑ 97↓ 3451.5%
10K· 6.21 mi
9:23/mi
56:55
↑ 79↓ 1380.4%
15K· 9.32 mi
9:40/mi
1:26:56
↑ 67↓ 78
20K· 12.43 mi
10:39/mi
2:00:01
↑ 106↓ 860.1%
Half· 13.11 mi
10:27/mi
2:07:09
↑ 19↓ 370.5%
25K· 15.53 mi
11:44/mi
2:35:36
↑ 66↓ 880.2%
30K· 18.64 mi
13:00/mi
3:15:59
↑ 181↓ 1480.2%
20M
15:26/mi
3:36:58
↑ 64↓ 500.2%
21M
25:19/mi
4:02:17
↑ 106↓ 241.6%
35K· 21.75 mi
18:40/mi
4:16:15
↑ 17↓ 861.7%
23M
21:52/mi
4:43:38
↑ 23↓ 630.6%
24M
16:21/mi
4:59:59
↓ 821.3%
40K· 24.85 mi
13:28/mi
5:11:30
↓ 200.3%
25.2M
13:32/mi
5:16:10
↑ 13↓ 160.2%
Finish· 26.22 mi
11:43/mi
5:28:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:09
Pace9:42 /mi
2nd Half
Distance13.11 mi
Time3:20:57
Pace15:20 /mi
📊Positive Split: 58.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5927:478:5727:47
8:57
-
10K
6.21 mi12:23:0756:559:1029:08
9:23
+0:26
15K
9.32 mi12:53:081:26:569:2030:01
9:40
+0:17
20K
12.43 mi13:26:132:00:019:3933:05
10:39
+0:59
Half
13.11 mi13:33:212:07:099:427:08
10:27
-0:12
25K
15.53 mi14:01:482:35:3610:0128:27
11:44
+1:17
30K
18.64 mi14:42:113:15:5910:3140:23
13:00
+1:16
20M
20.00 mi15:03:103:36:5810:5120:59
15:26
+2:26
21M
21.00 mi15:28:294:02:1711:3225:19
25:19
+9:53
35K
21.75 mi15:42:274:16:1511:4713:58
18:40
-6:39
23M
23.00 mi16:09:504:43:3812:2027:23
21:52
+3:12
24M
24.00 mi16:26:114:59:5912:3016:21
16:21
-5:31
40K
24.85 mi16:37:425:11:3012:3211:31
13:28
-2:53
25.2M
25.20 mi16:42:225:16:1012:334:40
13:32
+0:04
Finish
26.22 mi16:54:185:28:0612:3111:56
11:43
-1:49

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

8:57 /mi

Average Pace

12:31 /mi

Slowest Pace

25:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:09

39% of race

Time at Steady Pace

1:36:57

30% of race

Time at Slower Pace

1:44:00

32% of race

Average Pace: 12:31 /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 mi11:53:5927:478:5727:47
8:57
#19834
10K
6.21 mi12:23:0756:559:1029:08
9:23
#20513
15K
9.32 mi12:53:081:26:569:2030:01
9:40
#20727
20K
12.43 mi13:26:132:00:019:3933:05
10:39
#21104
Half
13.11 mi13:33:212:07:099:427:08
10:27
#21178
25K
15.53 mi14:01:482:35:3610:0128:27
11:44
#21511
30K
18.64 mi14:42:113:15:5910:3140:23
13:00
#21986
20M
20.00 mi15:03:103:36:5810:5120:59
15:26
#22426
21M
21.00 mi15:28:294:02:1711:3225:19
25:19
#23355
35K
21.75 mi15:42:274:16:1511:4713:58
18:40
#23644
23M
23.00 mi16:09:504:43:3812:2027:23
21:52
#24172
24M
24.00 mi16:26:114:59:5912:3016:21
16:21
#24318
40K
24.85 mi16:37:425:11:3012:3211:31
13:28
#24284
25.2M
25.20 mi16:42:225:16:1012:334:40
13:32
#24250
Finish
26.22 mi16:54:185:28:0612:3111:56
11:43
#24225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19834119971199721111(Top 83%)12689(Top 87%)12689(Top 262%)
10K6.21 mi3.10 mi20513-67912344-34712344-34721028(Top 82%)12602(Top 86%)12602(Top 260%)
15K9.32 mi3.11 mi20727-21412474-13012474-13021111(Top 83%)12689(Top 87%)12689(Top 262%)
20K12.43 mi3.11 mi21104-37712654-18012654-18021970(Top 86%)13035(Top 89%)13035(Top 269%)
Half13.11 mi0.68 mi21178-7412689-3512689-3522553(Top 88%)13262(Top 91%)13262(Top 273%)
25K15.53 mi2.42 mi21511-33312816-12712816-12722759(Top 89%)13296(Top 91%)13296(Top 274%)
30K18.64 mi3.11 mi21986-47512978-16212978-16223300(Top 91%)13452(Top 92%)13452(Top 277%)
20M20.00 mi1.36 mi22426-44013177-19913177-19924992(Top 98%)14245(Top 98%)14245(Top 294%)
21M21.00 mi1.00 mi23355-92913592-41513592-41525516(Top 100%)14561(Top 100%)14561(Top 300%)
35K21.75 mi0.75 mi23644-28913729-13713729-13725439(Top 100%)14507(Top 100%)14507(Top 299%)
23M23.00 mi1.25 mi24172-52813969-24013969-24025507(Top 100%)14551(Top 100%)14551(Top 300%)
24M24.00 mi1.00 mi24318-14614035-6614035-6625208(Top 99%)14330(Top 98%)14330(Top 296%)
40K24.85 mi0.85 mi24284+3414012+2314012+2322965(Top 90%)13007(Top 89%)13007(Top 268%)
25.2M25.20 mi0.35 mi24250+3413990+2213990+2220785(Top 81%)11852(Top 81%)11852(Top 244%)
Finish26.22 mi1.02 mi24225+2513969+2113969+2122801(Top 89%)12911(Top 89%)12911(Top 266%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

21111

Males

12689

M18-39

12689

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21028

Males

12602

M18-39

12602

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

21111

Males

12689

M18-39

12689

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

21970

Males

13035

M18-39

13035

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

22553

Males

13262

M18-39

13262

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

22759

Males

13296

M18-39

13296

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

23300

Males

13452

M18-39

13452

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

24992

Males

14245

M18-39

14245

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

25516

Males

14561

M18-39

14561

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

25439

Males

14507

M18-39

14507

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

25507

Males

14551

M18-39

14551

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

25208

Males

14330

M18-39

14330

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

22965

Males

13007

M18-39

13007

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

20785

Males

11852

M18-39

11852

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

22801

Males

12911

M18-39

12911

Passing Analysis

Category:
Athletes Passed
575
Passed By
4966
Net Change
-4391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19834
5K → 10K80759-679#19834#20513
10K → 15K137351-214#20513#20727
15K → 20K74451-377#20727#21104
20K → Half781-74#21104#21178
Half → 25K72405-333#21178#21511
25K → 30K58533-475#21511#21986
30K → 20M11451-440#21986#22426
20M → 21M5934-929#22426#23355
21M → 35K6295-289#23355#23644
35K → 23M6534-528#23644#24172
23M → 24M3149-146#24172#24318
24M → 40K395+34#24318#24284
40K → 25.2M351+34#24284#24250
25.2M → Finish4217+25#24250#24225
TOTALS5754966-4391
📊

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