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BOSTON MARATHON 2024

John Belcik

Bib: 21786•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M65-69)
#0 / 617
Top 32%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:41
Rank: #14215
Start → 5K
24:41 | 7:57/mi
10K· 6.21 mi
50:21
Rank: #15130 (-915)
5K → 10K
25:40 | 8:16/mi
15K· 9.32 mi
1:17:31
Rank: #16022 (-892)
10K → 15K
27:10 | 8:45/mi
20K· 12.43 mi
1:45:52
Rank: #16522 (-500)
15K → 20K
28:21 | 9:07/mi
Half· 13.11 mi
1:51:57
Rank: #16610 (-88)
20K → Half
6:05 | 8:55/mi
25K· 15.53 mi
2:15:15
Rank: #16860 (-250)
Half → 25K
23:18 | 9:37/mi
30K· 18.64 mi
2:46:28
Rank: #17028 (-168)
25K → 30K
31:13 | 10:03/mi
20M
3:00:11
Rank: #17041 (-13)
30K → 20M
13:43 | 10:06/mi
21M
3:11:05
Rank: #16985 (+56)
20M → 21M
10:54 | 10:54/mi
35K· 21.75 mi
3:18:19
Rank: #16952 (+33)
21M → 35K
7:14 | 9:40/mi
23M
3:30:46
Rank: #16861 (+91)
35K → 23M
12:27 | 9:57/mi
24M
3:41:20
Rank: #16940 (-79)
23M → 24M
10:34 | 10:34/mi
40K· 24.85 mi
3:50:46
Rank: #16996 (-56)
24M → 40K
9:26 | 11:02/mi
25.2M
3:55:05
Rank: #17022 (-26)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:05:25
Rank: #17049 (-27)
25.2M → Finish
10:20 | 10:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:57
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:13:28
Pace10:11 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4424:417:5724:41
7:57
-
10K
6.21 mi11:48:2450:218:0625:40
8:16
+0:19
15K
9.32 mi12:15:341:17:318:1927:10
8:45
+0:29
20K
12.43 mi12:43:551:45:528:3128:21
9:07
+0:22
Half
13.11 mi12:50:001:51:578:326:05
8:55
-0:12
25K
15.53 mi13:13:182:15:158:4223:18
9:37
+0:42
30K
18.64 mi13:44:312:46:288:5631:13
10:03
+0:26
20M
20.00 mi13:58:143:00:119:0113:43
10:06
+0:03
21M
21.00 mi14:09:083:11:059:0610:54
10:54
+0:48
35K
21.75 mi14:16:223:18:199:077:14
9:40
-1:14
23M
23.00 mi14:28:493:30:469:1012:27
9:57
+0:17
24M
24.00 mi14:39:233:41:209:1310:34
10:34
+0:37
40K
24.85 mi14:48:493:50:469:179:26
11:02
+0:28
25.2M
25.20 mi14:53:083:55:059:204:19
12:31
+1:29
Finish
26.22 mi15:03:284:05:259:2210:20
10:08
-2:23

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

7:57 /mi

Average Pace

9:22 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:57

46% of race

Time at Steady Pace

1:38:15

40% of race

Time at Slower Pace

35:13

14% of race

Average Pace: 9:22 /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 mi11:22:4424:417:5724:41
7:57
#14215
10K
6.21 mi11:48:2450:218:0625:40
8:16
#15130
15K
9.32 mi12:15:341:17:318:1927:10
8:45
#16022
20K
12.43 mi12:43:551:45:528:3128:21
9:07
#16522
Half
13.11 mi12:50:001:51:578:326:05
8:55
#16610
25K
15.53 mi13:13:182:15:158:4223:18
9:37
#16860
30K
18.64 mi13:44:312:46:288:5631:13
10:03
#17028
20M
20.00 mi13:58:143:00:119:0113:43
10:06
#17041
21M
21.00 mi14:09:083:11:059:0610:54
10:54
#16985
35K
21.75 mi14:16:223:18:199:077:14
9:40
#16952
23M
23.00 mi14:28:493:30:469:1012:27
9:57
#16861
24M
24.00 mi14:39:233:41:209:1310:34
10:34
#16940
40K
24.85 mi14:48:493:50:469:179:26
11:02
#16996
25.2M
25.20 mi14:53:083:55:059:204:19
12:31
#17022
Finish
26.22 mi15:03:284:05:259:2210:20
10:08
#17049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi142159729972917695(Top 69%)11118(Top 76%)11118(Top 1802%)
10K6.21 mi3.10 mi15130-91510080-35110080-35115896(Top 62%)10389(Top 71%)10389(Top 1684%)
15K9.32 mi3.11 mi16022-89210413-33310413-33317695(Top 69%)11118(Top 76%)11118(Top 1802%)
20K12.43 mi3.11 mi16522-50010612-19910612-19917871(Top 70%)11197(Top 77%)11197(Top 1815%)
Half13.11 mi0.68 mi16610-8810638-2610638-2617845(Top 70%)11088(Top 76%)11088(Top 1797%)
25K15.53 mi2.42 mi16860-25010715-7710715-7717894(Top 70%)11094(Top 76%)11094(Top 1798%)
30K18.64 mi3.11 mi17028-168107151071517498(Top 68%)10676(Top 73%)10676(Top 1730%)
20M20.00 mi1.36 mi17041-1310686+2910686+2916783(Top 66%)10147(Top 70%)10147(Top 1645%)
21M21.00 mi1.00 mi16985+5610632+5410632+5416074(Top 63%)9671(Top 66%)9671(Top 1567%)
35K21.75 mi0.75 mi16952+3310592+4010592+4016077(Top 63%)9657(Top 66%)9657(Top 1565%)
23M23.00 mi1.25 mi16861+9110529+6310529+6315277(Top 60%)9186(Top 63%)9186(Top 1489%)
24M24.00 mi1.00 mi16940-7910540-1110540-1118038(Top 71%)10518(Top 72%)10518(Top 1705%)
40K24.85 mi0.85 mi16996-5610526+1410526+1418144(Top 71%)10536(Top 72%)10536(Top 1708%)
25.2M25.20 mi0.35 mi17022-2610524+210524+218537(Top 73%)10710(Top 73%)10710(Top 1736%)
Finish26.22 mi1.02 mi17049-2710506+1810506+1818869(Top 74%)10919(Top 75%)10919(Top 1770%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

17695

Males

11118

M65-69

11118

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

15896

Males

10389

M65-69

10389

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

17695

Males

11118

M65-69

11118

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

17871

Males

11197

M65-69

11197

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

17845

Males

11088

M65-69

11088

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

17894

Males

11094

M65-69

11094

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

17498

Males

10676

M65-69

10676

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

16783

Males

10147

M65-69

10147

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16074

Males

9671

M65-69

9671

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16077

Males

9657

M65-69

9657

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15277

Males

9186

M65-69

9186

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18038

Males

10518

M65-69

10518

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18144

Males

10536

M65-69

10536

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

18537

Males

10710

M65-69

10710

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

18869

Males

10919

M65-69

10919

Passing Analysis

Category:
Athletes Passed
1304
Passed By
4138
Net Change
-2834
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14215
5K → 10K69984-915#14215#15130
10K → 15K61953-892#15130#16022
15K → 20K119619-500#16022#16522
20K → Half20108-88#16522#16610
Half → 25K149399-250#16610#16860
25K → 30K185353-168#16860#17028
30K → 20M120133-13#17028#17041
20M → 21M12569+56#17041#16985
21M → 35K8451+33#16985#16952
35K → 23M14049+91#16952#16861
23M → 24M57136-79#16861#16940
24M → 40K73129-56#16940#16996
40K → 25.2M3460-26#16996#17022
25.2M → Finish6895-27#17022#17049
TOTALS13044138-2834
📊

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