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BOSTON MARATHON 2024

Rob Coslick

Bib: 3610•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 17%
Gender (Male)
#0 / 14578
Top 26%
Masters (Masters Men)
#0 / 9729
Top 14%
Division (M40-44)
#0 / 2009
Top 36%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:42
Rank: #4506
Start → 5K
20:42 | 6:40/mi
10K· 6.21 mi
41:39
Rank: #4573 (-67)
5K → 10K
20:57 | 6:45/mi
15K· 9.32 mi
1:02:40
Rank: #4503 (+70)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:23:54
Rank: #4349 (+154)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:28:30
Rank: #4324 (+25)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:40
Rank: #4364 (-40)
Half → 25K
17:10 | 7:05/mi
30K· 18.64 mi
2:08:55
Rank: #4527 (-163)
25K → 30K
23:15 | 7:29/mi
20M
2:19:22
Rank: #4509 (+18)
30K → 20M
10:27 | 7:41/mi
21M
2:27:34
Rank: #4466 (+43)
20M → 21M
8:12 | 8:12/mi
35K· 21.75 mi
2:33:16
Rank: #4456 (+10)
21M → 35K
5:42 | 7:37/mi
23M
2:43:18
Rank: #4468 (-12)
35K → 23M
10:02 | 8:01/mi
24M
2:50:46
Rank: #4354 (+114)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
2:57:29
Rank: #4299 (+55)
24M → 40K
6:43 | 7:51/mi
25.2M
3:00:19
Rank: #4247 (+52)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:07:56
Rank: #4226 (+21)
25.2M → Finish
7:37 | 7:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:30
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1120:426:4020:42
6:40
-
10K
6.21 mi10:44:0841:396:4220:57
6:45
+0:05
15K
9.32 mi11:05:091:02:406:4321:01
6:46
+0:01
20K
12.43 mi11:26:231:23:546:4521:14
6:50
+0:04
Half
13.11 mi11:30:591:28:306:454:36
6:45
-0:05
25K
15.53 mi11:48:091:45:406:4817:10
7:05
+0:20
30K
18.64 mi12:11:242:08:556:5523:15
7:29
+0:24
20M
20.00 mi12:21:512:19:226:5810:27
7:41
+0:12
21M
21.00 mi12:30:032:27:347:028:12
8:12
+0:31
35K
21.75 mi12:35:452:33:167:035:42
7:37
-0:35
23M
23.00 mi12:45:472:43:187:0610:02
8:01
+0:24
24M
24.00 mi12:53:152:50:467:077:28
7:28
-0:33
40K
24.85 mi12:59:582:57:297:086:43
7:51
+0:23
25.2M
25.20 mi13:02:483:00:197:092:50
8:13
+0:22
Finish
26.22 mi13:10:253:07:567:107:37
7:28
-0:45

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

6:40 /mi

Average Pace

7:10 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:40

56% of race

Time at Steady Pace

54:29

29% of race

Time at Slower Pace

27:47

15% of race

Average Pace: 7:10 /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 mi10:23:1120:426:4020:42
6:40
#4506
10K
6.21 mi10:44:0841:396:4220:57
6:45
#4573
15K
9.32 mi11:05:091:02:406:4321:01
6:46
#4503
20K
12.43 mi11:26:231:23:546:4521:14
6:50
#4349
Half
13.11 mi11:30:591:28:306:454:36
6:45
#4324
25K
15.53 mi11:48:091:45:406:4817:10
7:05
#4364
30K
18.64 mi12:11:242:08:556:5523:15
7:29
#4527
20M
20.00 mi12:21:512:19:226:5810:27
7:41
#4509
21M
21.00 mi12:30:032:27:347:028:12
8:12
#4466
35K
21.75 mi12:35:452:33:167:035:42
7:37
#4456
23M
23.00 mi12:45:472:43:187:0610:02
8:01
#4468
24M
24.00 mi12:53:152:50:467:077:28
7:28
#4354
40K
24.85 mi12:59:582:57:297:086:43
7:51
#4299
25.2M
25.20 mi13:02:483:00:197:092:50
8:13
#4247
Finish
26.22 mi13:10:253:07:567:107:37
7:28
#4226
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4506421942194426(Top 17%)4128(Top 28%)4128(Top 205%)
10K6.21 mi3.10 mi4573-674275-564275-564685(Top 18%)4355(Top 30%)4355(Top 217%)
15K9.32 mi3.11 mi4503+704207+684207+684426(Top 17%)4128(Top 28%)4128(Top 205%)
20K12.43 mi3.11 mi4349+1544059+1484059+1484132(Top 16%)3854(Top 26%)3854(Top 192%)
Half13.11 mi0.68 mi4324+254034+254034+254099(Top 16%)3823(Top 26%)3823(Top 190%)
25K15.53 mi2.42 mi4364-404071-374071-374719(Top 18%)4266(Top 29%)4266(Top 212%)
30K18.64 mi3.11 mi4527-1634177-1064177-1065003(Top 20%)4350(Top 30%)4350(Top 217%)
20M20.00 mi1.36 mi4509+184148+294148+295135(Top 20%)4323(Top 30%)4323(Top 215%)
21M21.00 mi1.00 mi4466+434098+504098+504911(Top 19%)4038(Top 28%)4038(Top 201%)
35K21.75 mi0.75 mi4456+104077+214077+215626(Top 22%)4454(Top 31%)4454(Top 222%)
23M23.00 mi1.25 mi4468-124060+174060+175789(Top 23%)4407(Top 30%)4407(Top 219%)
24M24.00 mi1.00 mi4354+1143942+1183942+1184001(Top 16%)3307(Top 23%)3307(Top 165%)
40K24.85 mi0.85 mi4299+553875+673875+675026(Top 20%)3809(Top 26%)3809(Top 190%)
25.2M25.20 mi0.35 mi4247+523824+513824+513424(Top 13%)2808(Top 19%)2808(Top 140%)
Finish26.22 mi1.02 mi4226+213784+403784+405460(Top 21%)4043(Top 28%)4043(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4426

Males

4128

M40-44

4128

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4685

Males

4355

M40-44

4355

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4426

Males

4128

M40-44

4128

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4132

Males

3854

M40-44

3854

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4099

Males

3823

M40-44

3823

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4719

Males

4266

M40-44

4266

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5003

Males

4350

M40-44

4350

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5135

Males

4323

M40-44

4323

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

4911

Males

4038

M40-44

4038

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5626

Males

4454

M40-44

4454

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

5789

Males

4407

M40-44

4407

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4001

Males

3307

M40-44

3307

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5026

Males

3809

M40-44

3809

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3424

Males

2808

M40-44

2808

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5460

Males

4043

M40-44

4043

Passing Analysis

Category:
Athletes Passed
1558
Passed By
1278
Net Change
+280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4506
5K → 10K160227-67#4506#4573
10K → 15K15888+70#4573#4503
15K → 20K22773+154#4503#4349
20K → Half4318+25#4349#4324
Half → 25K128168-40#4324#4364
25K → 30K145308-163#4364#4527
30K → 20M10385+18#4527#4509
20M → 21M10360+43#4509#4466
21M → 35K5949+10#4466#4456
35K → 23M91103-12#4456#4468
23M → 24M13420+114#4468#4354
24M → 40K8429+55#4354#4299
40K → 25.2M608+52#4299#4247
25.2M → Finish6342+21#4247#4226
TOTALS15581278+280
📊

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