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BOSTON MARATHON 2024

Koen Cosijns

Bib: 4058•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 20%
Gender (Male)
#0 / 14578
Top 30%
Masters (Masters Men)
#0 / 9729
Top 19%
Division (M45-49)
#0 / 2218
Top 25%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:25
Rank: #3794
Start → 5K
20:25 | 6:34/mi
10K· 6.21 mi
40:58
Rank: #3709 (+85)
5K → 10K
20:33 | 6:37/mi
15K· 9.32 mi
1:02:01
Rank: #3953 (-244)
10K → 15K
21:03 | 6:47/mi
20K· 12.43 mi
1:24:05
Rank: #4486 (-533)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:29:01
Rank: #4635 (-149)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:46:53
Rank: #4975 (-340)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:10:35
Rank: #5027 (-52)
25K → 30K
23:42 | 7:38/mi
20M
2:21:07
Rank: #4990 (+37)
30K → 20M
10:32 | 7:45/mi
21M
2:29:35
Rank: #4978 (+12)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
2:36:02
Rank: #5126 (-148)
21M → 35K
6:27 | 8:37/mi
23M
2:45:57
Rank: #5035 (+91)
35K → 23M
9:55 | 7:55/mi
24M
2:54:04
Rank: #5057 (-22)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:01:01
Rank: #5029 (+28)
24M → 40K
6:57 | 8:08/mi
25.2M
3:04:29
Rank: #5094 (-65)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:12:21
Rank: #5096 (-2)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:01
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:43:20
Pace7:53 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3520:256:3420:25
6:34
-
10K
6.21 mi10:44:0840:586:3620:33
6:37
+0:03
15K
9.32 mi11:05:111:02:016:3921:03
6:47
+0:10
20K
12.43 mi11:27:151:24:056:4622:04
7:06
+0:19
Half
13.11 mi11:32:111:29:016:474:56
7:14
+0:08
25K
15.53 mi11:50:031:46:536:5317:52
7:22
+0:08
30K
18.64 mi12:13:452:10:357:0023:42
7:38
+0:16
20M
20.00 mi12:24:172:21:077:0310:32
7:45
+0:07
21M
21.00 mi12:32:452:29:357:078:28
8:28
+0:43
35K
21.75 mi12:39:122:36:027:106:27
8:37
+0:09
23M
23.00 mi12:49:072:45:577:139:55
7:55
-0:42
24M
24.00 mi12:57:142:54:047:158:07
8:07
+0:12
40K
24.85 mi13:04:113:01:017:176:57
8:08
+0:01
25.2M
25.20 mi13:07:393:04:297:193:28
10:03
+1:55
Finish
26.22 mi13:15:313:12:217:207:52
7:43
-2:20

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

6:34 /mi

Average Pace

7:20 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:01

46% of race

Time at Steady Pace

1:24:57

44% of race

Time at Slower Pace

18:23

10% of race

Average Pace: 7:20 /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 mi10:23:3520:256:3420:25
6:34
#3794
10K
6.21 mi10:44:0840:586:3620:33
6:37
#3709
15K
9.32 mi11:05:111:02:016:3921:03
6:47
#3953
20K
12.43 mi11:27:151:24:056:4622:04
7:06
#4486
Half
13.11 mi11:32:111:29:016:474:56
7:14
#4635
25K
15.53 mi11:50:031:46:536:5317:52
7:22
#4975
30K
18.64 mi12:13:452:10:357:0023:42
7:38
#5027
20M
20.00 mi12:24:172:21:077:0310:32
7:45
#4990
21M
21.00 mi12:32:452:29:357:078:28
8:28
#4978
35K
21.75 mi12:39:122:36:027:106:27
8:37
#5126
23M
23.00 mi12:49:072:45:577:139:55
7:55
#5035
24M
24.00 mi12:57:142:54:047:158:07
8:07
#5057
40K
24.85 mi13:04:113:01:017:176:57
8:08
#5029
25.2M
25.20 mi13:07:393:04:297:193:28
10:03
#5094
Finish
26.22 mi13:15:313:12:217:207:52
7:43
#5096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3794359635964526(Top 18%)4219(Top 29%)4219(Top 190%)
10K6.21 mi3.10 mi3709+853514+823514+823707(Top 15%)3503(Top 24%)3503(Top 158%)
15K9.32 mi3.11 mi3953-2443733-2193733-2194526(Top 18%)4219(Top 29%)4219(Top 190%)
20K12.43 mi3.11 mi4486-5334177-4444177-4445798(Top 23%)5166(Top 35%)5166(Top 233%)
Half13.11 mi0.68 mi4635-1494308-1314308-1317105(Top 28%)6047(Top 41%)6047(Top 273%)
25K15.53 mi2.42 mi4975-3404575-2674575-2676212(Top 24%)5312(Top 36%)5312(Top 239%)
30K18.64 mi3.11 mi5027-524590-154590-155746(Top 22%)4835(Top 33%)4835(Top 218%)
20M20.00 mi1.36 mi4990+374540+504540+505448(Top 21%)4525(Top 31%)4525(Top 204%)
21M21.00 mi1.00 mi4978+124497+434497+436049(Top 24%)4710(Top 32%)4710(Top 212%)
35K21.75 mi0.75 mi5126-1484587-904587-9011365(Top 44%)7372(Top 51%)7372(Top 332%)
23M23.00 mi1.25 mi5035+914490+974490+975348(Top 21%)4174(Top 29%)4174(Top 188%)
24M24.00 mi1.00 mi5057-224477+134477+137254(Top 28%)5106(Top 35%)5106(Top 230%)
40K24.85 mi0.85 mi5029+284434+434434+436396(Top 25%)4542(Top 31%)4542(Top 205%)
25.2M25.20 mi0.35 mi5094-654462-284462-2811071(Top 43%)6896(Top 47%)6896(Top 311%)
Finish26.22 mi1.02 mi5096-24429+334429+336830(Top 27%)4774(Top 33%)4774(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4526

Males

4219

M45-49

4219

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

3707

Males

3503

M45-49

3503

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4526

Males

4219

M45-49

4219

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

5798

Males

5166

M45-49

5166

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7105

Males

6047

M45-49

6047

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6212

Males

5312

M45-49

5312

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5746

Males

4835

M45-49

4835

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5448

Males

4525

M45-49

4525

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6049

Males

4710

M45-49

4710

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11365

Males

7372

M45-49

7372

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5348

Males

4174

M45-49

4174

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7254

Males

5106

M45-49

5106

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6396

Males

4542

M45-49

4542

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11071

Males

6896

M45-49

6896

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

6830

Males

4774

M45-49

4774

Passing Analysis

Category:
Athletes Passed
1178
Passed By
2480
Net Change
-1302
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3794
5K → 10K197112+85#3794#3709
10K → 15K52296-244#3709#3953
15K → 20K55588-533#3953#4486
20K → Half4153-149#4486#4635
Half → 25K90430-340#4635#4975
25K → 30K157209-52#4975#5027
30K → 20M11780+37#5027#4990
20M → 21M10189+12#4990#4978
21M → 35K25173-148#4978#5126
35K → 23M14049+91#5126#5035
23M → 24M6688-22#5035#5057
24M → 40K8860+28#5057#5029
40K → 25.2M2085-65#5029#5094
25.2M → Finish6668-2#5094#5096
TOTALS11782480-1302
📊

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