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BOSTON MARATHON 2023

Colin Crowley

Bib: 9937•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:00
Rank: #8844
Start → 5K
23:00 | 7:24/mi
10K· 6.21 mi
46:12
Rank: #9455 (-611)
5K → 10K
23:12 | 7:28/mi
15K· 9.32 mi
1:09:13
Rank: #9406 (+49)
10K → 15K
23:01 | 7:25/mi
20K· 12.43 mi
1:32:39
Rank: #9448 (-42)
15K → 20K
23:26 | 7:33/mi
Half· 13.11 mi
1:37:38
Rank: #9406 (+42)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:55:58
Rank: #9353 (+53)
Half → 25K
18:20 | 7:34/mi
30K· 18.64 mi
2:20:26
Rank: #9431 (-78)
25K → 30K
24:28 | 7:53/mi
20M
2:31:13
Rank: #9451 (-20)
30K → 20M
10:47 | 7:56/mi
21M
2:39:51
Rank: #9527 (-76)
20M → 21M
8:38 | 8:38/mi
35K· 21.75 mi
2:45:36
Rank: #9528 (-1)
21M → 35K
5:45 | 7:41/mi
23M
2:56:32
Rank: #9805 (-277)
35K → 23M
10:56 | 8:44/mi
24M
3:05:34
Rank: #10190 (-385)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:14:19
Rank: #10782 (-592)
24M → 40K
8:45 | 10:14/mi
25.2M
3:18:01
Rank: #10991 (-209)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
3:28:06
Rank: #11647 (-656)
25.2M → Finish
10:05 | 9:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:38
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:50:28
Pace8:26 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0323:007:2423:00
7:24
-
10K
6.21 mi11:12:1546:127:2623:12
7:28
+0:04
15K
9.32 mi11:35:161:09:137:2623:01
7:25
-0:03
20K
12.43 mi11:58:421:32:397:2723:26
7:33
+0:08
Half
13.11 mi12:03:411:37:387:274:59
7:18
-0:15
25K
15.53 mi12:22:011:55:587:2818:20
7:34
+0:16
30K
18.64 mi12:46:292:20:267:3224:28
7:53
+0:19
20M
20.00 mi12:57:162:31:137:3410:47
7:56
+0:03
21M
21.00 mi13:05:542:39:517:378:38
8:38
+0:42
35K
21.75 mi13:11:392:45:367:375:45
7:41
-0:57
23M
23.00 mi13:22:352:56:327:4110:56
8:44
+1:03
24M
24.00 mi13:31:373:05:347:449:02
9:02
+0:18
40K
24.85 mi13:40:223:14:197:498:45
10:14
+1:12
25.2M
25.20 mi13:44:043:18:017:513:42
10:44
+0:30
Finish
26.22 mi13:54:093:28:067:5710:05
9:54
-0:50

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

7:18 /mi

Average Pace

7:57 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:59

2% of race

Time at Steady Pace

2:31:59

73% of race

Time at Slower Pace

51:08

25% of race

Average Pace: 7:56 /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 mi10:49:0323:007:2423:00
7:24
#8844
10K
6.21 mi11:12:1546:127:2623:12
7:28
#9455
15K
9.32 mi11:35:161:09:137:2623:01
7:25
#9406
20K
12.43 mi11:58:421:32:397:2723:26
7:33
#9448
Half
13.11 mi12:03:411:37:387:274:59
7:18
#9406
25K
15.53 mi12:22:011:55:587:2818:20
7:34
#9353
30K
18.64 mi12:46:292:20:267:3224:28
7:53
#9431
20M
20.00 mi12:57:162:31:137:3410:47
7:56
#9451
21M
21.00 mi13:05:542:39:517:378:38
8:38
#9527
35K
21.75 mi13:11:392:45:367:375:45
7:41
#9528
23M
23.00 mi13:22:352:56:327:4110:56
8:44
#9805
24M
24.00 mi13:31:373:05:347:449:02
9:02
#10190
40K
24.85 mi13:40:223:14:197:498:45
10:14
#10782
25.2M
25.20 mi13:44:043:18:017:513:42
10:44
#10991
Finish
26.22 mi13:54:093:28:067:5710:05
9:54
#11647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8844750375039409(Top 35%)7813(Top 51%)7813(Top 347%)
10K6.21 mi3.10 mi9455-6117854-3517854-35110201(Top 38%)8278(Top 55%)8278(Top 368%)
15K9.32 mi3.11 mi9406+497814+407814+409409(Top 35%)7813(Top 51%)7813(Top 347%)
20K12.43 mi3.11 mi9448-427825-117825-119651(Top 36%)7887(Top 52%)7887(Top 350%)
Half13.11 mi0.68 mi9406+427795+307795+308656(Top 33%)7320(Top 48%)7320(Top 325%)
25K15.53 mi2.42 mi9353+537757+387757+389249(Top 35%)7588(Top 50%)7588(Top 337%)
30K18.64 mi3.11 mi9431-78775777579938(Top 37%)7797(Top 51%)7797(Top 346%)
20M20.00 mi1.36 mi9451-207753+47753+49796(Top 37%)7645(Top 50%)7645(Top 339%)
21M21.00 mi1.00 mi9527-767774-217774-2111240(Top 42%)8230(Top 54%)8230(Top 365%)
35K21.75 mi0.75 mi9528-17759+157759+159845(Top 37%)7558(Top 50%)7558(Top 336%)
23M23.00 mi1.25 mi9805-2777883-1247883-12414560(Top 55%)9601(Top 63%)9601(Top 426%)
24M24.00 mi1.00 mi10190-3858059-1768059-17617360(Top 65%)10780(Top 71%)10780(Top 479%)
40K24.85 mi0.85 mi10782-5928329-2708329-27020549(Top 77%)12166(Top 80%)12166(Top 540%)
25.2M25.20 mi0.35 mi10991-2098415-868415-8619726(Top 74%)11778(Top 78%)11778(Top 523%)
Finish26.22 mi1.02 mi11647-6568700-2858700-28521448(Top 81%)12608(Top 83%)12608(Top 560%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9409

Males

7813

M45-49

7813

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10201

Males

8278

M45-49

8278

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9409

Males

7813

M45-49

7813

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9651

Males

7887

M45-49

7887

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8656

Males

7320

M45-49

7320

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9249

Males

7588

M45-49

7588

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9938

Males

7797

M45-49

7797

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9796

Males

7645

M45-49

7645

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11240

Males

8230

M45-49

8230

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9845

Males

7558

M45-49

7558

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14560

Males

9601

M45-49

9601

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17360

Males

10780

M45-49

10780

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20549

Males

12166

M45-49

12166

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19726

Males

11778

M45-49

11778

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21448

Males

12608

M45-49

12608

Passing Analysis

Category:
Athletes Passed
976*
Passed By
3777
Net Change
-2803
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8844
5K → 10K81692-611#8844#9455
10K → 15K177128+49#9455#9406
15K → 20K121163-42#9406#9448
20K → Half486+42#9448#9406
Half → 25K14087+53#9406#9353
25K → 30K147*225-78#9353#9431
30K → 20M7999-20#9431#9451
20M → 21M61137-76#9451#9527
21M → 35K4950-1#9527#9528
35K → 23M35312-277#9528#9805
23M → 24M14397-385#9805#10190
24M → 40K9601-592#10190#10782
40K → 25.2M8217-209#10782#10991
25.2M → Finish7663-656#10991#11647
TOTALS976*3777-2803

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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