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BOSTON MARATHON 2024

Chase Prochnow

Bib: 6137•M

OR

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0:00
/ mi
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Overall
#0 / 25550
Top 10%
Gender (Male)
#0 / 14578
Top 16%
Division (M18-39)
#0 / 4849
Top 35%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:40
Rank: #4405
Start → 5K
20:40 | 6:39/mi
10K· 6.21 mi
41:04
Rank: #3827 (+578)
5K → 10K
20:24 | 6:34/mi
15K· 9.32 mi
1:01:31
Rank: #3565 (+262)
10K → 15K
20:27 | 6:35/mi
20K· 12.43 mi
1:22:25
Rank: #3476 (+89)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:26:59
Rank: #3480 (-4)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:43:17
Rank: #3291 (+189)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:04:41
Rank: #2994 (+297)
25K → 30K
21:24 | 6:53/mi
20M
2:14:07
Rank: #2878 (+116)
30K → 20M
9:26 | 6:57/mi
21M
2:21:38
Rank: #2800 (+78)
20M → 21M
7:31 | 7:31/mi
35K· 21.75 mi
2:26:31
Rank: #2687 (+113)
21M → 35K
4:53 | 6:32/mi
23M
2:35:25
Rank: #2607 (+80)
35K → 23M
8:54 | 7:06/mi
24M
2:42:19
Rank: #2539 (+68)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:48:21
Rank: #2471 (+68)
24M → 40K
6:02 | 7:03/mi
25.2M
2:51:07
Rank: #2463 (+8)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:58:22
Rank: #2493 (-30)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:59
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0420:406:3920:40
6:39
-
10K
6.21 mi10:46:2841:046:3720:24
6:34
-0:05
15K
9.32 mi11:06:551:01:316:3620:27
6:35
+0:01
20K
12.43 mi11:27:491:22:256:3820:54
6:44
+0:09
Half
13.11 mi11:32:231:26:596:384:34
6:42
-0:02
25K
15.53 mi11:48:411:43:176:3916:18
6:43
+0:01
30K
18.64 mi12:10:052:04:416:4121:24
6:53
+0:10
20M
20.00 mi12:19:312:14:076:429:26
6:57
+0:04
21M
21.00 mi12:27:022:21:386:457:31
7:31
+0:34
35K
21.75 mi12:31:552:26:316:444:53
6:32
-0:59
23M
23.00 mi12:40:492:35:256:458:54
7:06
+0:34
24M
24.00 mi12:47:432:42:196:466:54
6:54
-0:12
40K
24.85 mi12:53:452:48:216:466:02
7:03
+0:09
25.2M
25.20 mi12:56:312:51:076:472:46
8:01
+0:58
Finish
26.22 mi13:03:462:58:226:487:15
7:07
-0:54

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

6:32 /mi

Average Pace

6:48 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:24

37% of race

Time at Steady Pace

1:25:32

48% of race

Time at Slower Pace

26:26

15% of race

Average Pace: 6:48 /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 mi10:26:0420:406:3920:40
6:39
#4405
10K
6.21 mi10:46:2841:046:3720:24
6:34
#3827
15K
9.32 mi11:06:551:01:316:3620:27
6:35
#3565
20K
12.43 mi11:27:491:22:256:3820:54
6:44
#3476
Half
13.11 mi11:32:231:26:596:384:34
6:42
#3480
25K
15.53 mi11:48:411:43:176:3916:18
6:43
#3291
30K
18.64 mi12:10:052:04:416:4121:24
6:53
#2994
20M
20.00 mi12:19:312:14:076:429:26
6:57
#2878
21M
21.00 mi12:27:022:21:386:457:31
7:31
#2800
35K
21.75 mi12:31:552:26:316:444:53
6:32
#2687
23M
23.00 mi12:40:492:35:256:458:54
7:06
#2607
24M
24.00 mi12:47:432:42:196:466:54
6:54
#2539
40K
24.85 mi12:53:452:48:216:466:02
7:03
#2471
25.2M
25.20 mi12:56:312:51:076:472:46
8:01
#2463
Finish
26.22 mi13:03:462:58:226:487:15
7:07
#2493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4405413341333150(Top 12%)3000(Top 21%)3000(Top 62%)
10K6.21 mi3.10 mi3827+5783617+5163617+5163405(Top 13%)3235(Top 22%)3235(Top 67%)
15K9.32 mi3.11 mi3565+2623386+2313386+2313150(Top 12%)3000(Top 21%)3000(Top 62%)
20K12.43 mi3.11 mi3476+893302+843302+843365(Top 13%)3184(Top 22%)3184(Top 66%)
Half13.11 mi0.68 mi3480-43303-13303-13665(Top 14%)3435(Top 24%)3435(Top 71%)
25K15.53 mi2.42 mi3291+1893128+1753128+1752765(Top 11%)2614(Top 18%)2614(Top 54%)
30K18.64 mi3.11 mi2994+2972838+2902838+2902319(Top 9%)2191(Top 15%)2191(Top 45%)
20M20.00 mi1.36 mi2878+1162726+1122726+1122113(Top 8%)1985(Top 14%)1985(Top 41%)
21M21.00 mi1.00 mi2800+782650+762650+762545(Top 10%)2322(Top 16%)2322(Top 48%)
35K21.75 mi0.75 mi2687+1132542+1082542+1081354(Top 5%)1278(Top 9%)1278(Top 26%)
23M23.00 mi1.25 mi2607+802467+752467+752280(Top 9%)2066(Top 14%)2066(Top 43%)
24M24.00 mi1.00 mi2539+682400+672400+672006(Top 8%)1813(Top 12%)1813(Top 37%)
40K24.85 mi0.85 mi2471+682329+712329+712013(Top 8%)1801(Top 12%)1801(Top 37%)
25.2M25.20 mi0.35 mi2463+82315+142315+142767(Top 11%)2348(Top 16%)2348(Top 48%)
Finish26.22 mi1.02 mi2493-302342-272342-273611(Top 14%)2940(Top 20%)2940(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3150

Males

3000

M18-39

3000

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3405

Males

3235

M18-39

3235

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3150

Males

3000

M18-39

3000

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3365

Males

3184

M18-39

3184

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3665

Males

3435

M18-39

3435

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2765

Males

2614

M18-39

2614

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2319

Males

2191

M18-39

2191

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2113

Males

1985

M18-39

1985

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2545

Males

2322

M18-39

2322

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1354

Males

1278

M18-39

1278

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2280

Males

2066

M18-39

2066

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2006

Males

1813

M18-39

1813

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2013

Males

1801

M18-39

1801

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2767

Males

2348

M18-39

2348

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3611

Males

2940

M18-39

2940

Passing Analysis

Category:
Athletes Passed
2285
Passed By
373
Net Change
+1912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4405
5K → 10K59315+578#4405#3827
10K → 15K28725+262#3827#3565
15K → 20K16778+89#3565#3476
20K → Half1923-4#3476#3480
Half → 25K21526+189#3480#3291
25K → 30K33033+297#3291#2994
30K → 20M13418+116#2994#2878
20M → 21M10931+78#2878#2800
21M → 35K1163+113#2800#2687
35K → 23M9919+80#2687#2607
23M → 24M8315+68#2607#2539
24M → 40K7911+68#2539#2471
40K → 25.2M2618+8#2471#2463
25.2M → Finish2858-30#2463#2493
TOTALS2285373+1912
📊

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