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BOSTON MARATHON 2024

Aleksandr Gelfond

Bib: 2764•M

SC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 22%
Masters (Masters Men)
#0 / 9729
Top 11%
Division (M40-44)
#0 / 2009
Top 29%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:49
Rank: #1106
Start → 5K
18:49 | 6:03/mi
10K· 6.21 mi
38:48
Rank: #1725 (-619)
5K → 10K
19:59 | 6:26/mi
15K· 9.32 mi
59:29
Rank: #2313 (-588)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:22:25
Rank: #3478 (-1165)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:26:40
Rank: #3334 (+144)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:44:19
Rank: #3764 (-430)
Half → 25K
17:39 | 7:17/mi
30K· 18.64 mi
2:06:44
Rank: #3707 (+57)
25K → 30K
22:25 | 7:13/mi
20M
2:16:50
Rank: #3686 (+21)
30K → 20M
10:06 | 7:26/mi
21M
2:25:06
Rank: #3761 (-75)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:30:06
Rank: #3642 (+119)
21M → 35K
5:00 | 6:41/mi
23M
2:39:13
Rank: #3528 (+114)
35K → 23M
9:07 | 7:17/mi
24M
2:46:29
Rank: #3480 (+48)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
2:53:09
Rank: #3478 (+2)
24M → 40K
6:40 | 7:48/mi
25.2M
2:56:06
Rank: #3464 (+14)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:03:34
Rank: #3438 (+26)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:40
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:36:54
Pace7:24 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0518:496:0318:49
6:03
-
10K
6.21 mi10:40:0438:486:1519:59
6:26
+0:23
15K
9.32 mi11:00:4559:296:2320:41
6:39
+0:13
20K
12.43 mi11:23:411:22:256:3822:56
7:23
+0:44
Half
13.11 mi11:27:561:26:406:374:15
6:14
-1:09
25K
15.53 mi11:45:351:44:196:4317:39
7:17
+1:03
30K
18.64 mi12:08:002:06:446:4822:25
7:13
-0:04
20M
20.00 mi12:18:062:16:506:5010:06
7:26
+0:13
21M
21.00 mi12:26:222:25:066:558:16
8:16
+0:50
35K
21.75 mi12:31:222:30:066:545:00
6:41
-1:35
23M
23.00 mi12:40:292:39:136:559:07
7:17
+0:36
24M
24.00 mi12:47:452:46:296:567:16
7:16
-0:01
40K
24.85 mi12:54:252:53:096:586:40
7:48
+0:32
25.2M
25.20 mi12:57:222:56:066:592:57
8:33
+0:45
Finish
26.22 mi13:04:503:03:347:007:28
7:20
-1:13

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

6:03 /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

1:08:44

37% of race

Time at Steady Pace

1:36:57

53% of race

Time at Slower Pace

17:53

10% 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 mi10:20:0518:496:0318:49
6:03
#1106
10K
6.21 mi10:40:0438:486:1519:59
6:26
#1725
15K
9.32 mi11:00:4559:296:2320:41
6:39
#2313
20K
12.43 mi11:23:411:22:256:3822:56
7:23
#3478
Half
13.11 mi11:27:561:26:406:374:15
6:14
#3334
25K
15.53 mi11:45:351:44:196:4317:39
7:17
#3764
30K
18.64 mi12:08:002:06:446:4822:25
7:13
#3707
20M
20.00 mi12:18:062:16:506:5010:06
7:26
#3686
21M
21.00 mi12:26:222:25:066:558:16
8:16
#3761
35K
21.75 mi12:31:222:30:066:545:00
6:41
#3642
23M
23.00 mi12:40:292:39:136:559:07
7:17
#3528
24M
24.00 mi12:47:452:46:296:567:16
7:16
#3480
40K
24.85 mi12:54:252:53:096:586:40
7:48
#3478
25.2M
25.20 mi12:57:222:56:066:592:57
8:33
#3464
Finish
26.22 mi13:04:503:03:347:007:28
7:20
#3438
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1106106710673630(Top 14%)3432(Top 24%)3432(Top 171%)
10K6.21 mi3.10 mi1725-6191668-6011668-6012593(Top 10%)2486(Top 17%)2486(Top 124%)
15K9.32 mi3.11 mi2313-5882233-5652233-5653630(Top 14%)3432(Top 24%)3432(Top 171%)
20K12.43 mi3.11 mi3478-11653304-10713304-10717480(Top 29%)6284(Top 43%)6284(Top 313%)
Half13.11 mi0.68 mi3334+1443170+1343170+1341454(Top 6%)1409(Top 10%)1409(Top 70%)
25K15.53 mi2.42 mi3764-4303554-3843554-3845686(Top 22%)4972(Top 34%)4972(Top 247%)
30K18.64 mi3.11 mi3707+573480+743480+743832(Top 15%)3483(Top 24%)3483(Top 173%)
20M20.00 mi1.36 mi3686+213452+283452+284035(Top 16%)3573(Top 25%)3573(Top 178%)
21M21.00 mi1.00 mi3761-753506-543506-545166(Top 20%)4192(Top 29%)4192(Top 209%)
35K21.75 mi0.75 mi3642+1193393+1133393+1131862(Top 7%)1729(Top 12%)1729(Top 86%)
23M23.00 mi1.25 mi3528+1143276+1173276+1172843(Top 11%)2531(Top 17%)2531(Top 126%)
24M24.00 mi1.00 mi3480+483223+533223+533228(Top 13%)2786(Top 19%)2786(Top 139%)
40K24.85 mi0.85 mi3478+23213+103213+104728(Top 19%)3626(Top 25%)3626(Top 180%)
25.2M25.20 mi0.35 mi3464+143195+183195+184617(Top 18%)3512(Top 24%)3512(Top 175%)
Finish26.22 mi1.02 mi3438+263162+333162+334634(Top 18%)3595(Top 25%)3595(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3630

Males

3432

M40-44

3432

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2593

Males

2486

M40-44

2486

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3630

Males

3432

M40-44

3432

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7480

Males

6284

M40-44

6284

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1454

Males

1409

M40-44

1409

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5686

Males

4972

M40-44

4972

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3832

Males

3483

M40-44

3483

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4035

Males

3573

M40-44

3573

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5166

Males

4192

M40-44

4192

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1862

Males

1729

M40-44

1729

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2843

Males

2531

M40-44

2531

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3228

Males

2786

M40-44

2786

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4728

Males

3626

M40-44

3626

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4617

Males

3512

M40-44

3512

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4634

Males

3595

M40-44

3595

Passing Analysis

Category:
Athletes Passed
1092
Passed By
3424
Net Change
-2332
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1106
5K → 10K3622-619#1106#1725
10K → 15K5593-588#1725#2313
15K → 20K81173-1165#2313#3478
20K → Half1440+144#3478#3334
Half → 25K42472-430#3334#3764
25K → 30K220163+57#3764#3707
30K → 20M11190+21#3707#3686
20M → 21M66141-75#3686#3761
21M → 35K1223+119#3761#3642
35K → 23M14935+114#3642#3528
23M → 24M7628+48#3528#3480
24M → 40K5048+2#3480#3478
40K → 25.2M3319+14#3478#3464
25.2M → Finish6337+26#3464#3438
TOTALS10923424-2332
📊

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