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BOSTON MARATHON 2023

Brendan Crowther

Bib: 30672•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:58
Rank: #24968
Start → 5K
32:58 | 10:37/mi
10K· 6.21 mi
1:05:43
Rank: #24860 (+108)
5K → 10K
32:45 | 10:32/mi
15K· 9.32 mi
1:37:29
Rank: #24556 (+304)
10K → 15K
31:46 | 10:13/mi
20K· 12.43 mi
2:08:09
Rank: #24039 (+517)
15K → 20K
30:40 | 9:52/mi
Half· 13.11 mi
2:14:15
Rank: #23883 (+156)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:37:10
Rank: #23453 (+430)
Half → 25K
22:55 | 9:27/mi
30K· 18.64 mi
3:06:36
Rank: #22814 (+639)
25K → 30K
29:26 | 9:28/mi
20M
3:19:10
Rank: #22544 (+270)
30K → 20M
12:34 | 9:15/mi
21M
3:28:48
Rank: #22288 (+256)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
3:35:25
Rank: #22136 (+152)
21M → 35K
6:37 | 8:51/mi
23M
3:46:44
Rank: #21898 (+238)
35K → 23M
11:19 | 9:02/mi
24M
3:55:26
Rank: #21711 (+187)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
4:03:21
Rank: #21579 (+132)
24M → 40K
7:55 | 9:16/mi
25.2M
4:06:44
Rank: #21503 (+76)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
4:15:30
Rank: #21320 (+183)
25.2M → Finish
8:46 | 8:36/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:14:15
Pace10:14 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
📊Negative Split: 9.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4732:5810:3732:58
10:37
-
10K
6.21 mi12:25:321:05:4310:3532:45
10:32
-0:05
15K
9.32 mi12:57:181:37:2910:2831:46
10:13
-0:19
20K
12.43 mi13:27:582:08:0910:1930:40
9:52
-0:21
Half
13.11 mi13:34:042:14:1510:146:06
8:56
-0:56
25K
15.53 mi13:56:592:37:1010:0722:55
9:27
+0:31
30K
18.64 mi14:26:253:06:3610:0129:26
9:28
+0:01
20M
20.00 mi14:38:593:19:109:5712:34
9:15
-0:13
21M
21.00 mi14:48:373:28:489:579:38
9:38
+0:23
35K
21.75 mi14:55:143:35:259:546:37
8:51
-0:47
23M
23.00 mi15:06:333:46:449:5111:19
9:02
+0:11
24M
24.00 mi15:15:153:55:269:498:42
8:42
-0:20
40K
24.85 mi15:23:104:03:219:477:55
9:16
+0:34
25.2M
25.20 mi15:26:334:06:449:473:23
9:49
+0:33
Finish
26.22 mi15:35:194:15:309:458:46
8:36
-1:13

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

8:36 /mi

Average Pace

9:45 /mi

Slowest Pace

10:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

41:30

16% of race

Time at Steady Pace

1:22:28

32% of race

Time at Slower Pace

2:11:32

51% of race

Average Pace: 9:45 /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 mi11:52:4732:5810:3732:58
10:37
#24968
10K
6.21 mi12:25:321:05:4310:3532:45
10:32
#24860
15K
9.32 mi12:57:181:37:2910:2831:46
10:13
#24556
20K
12.43 mi13:27:582:08:0910:1930:40
9:52
#24039
Half
13.11 mi13:34:042:14:1510:146:06
8:56
#23883
25K
15.53 mi13:56:592:37:1010:0722:55
9:27
#23453
30K
18.64 mi14:26:253:06:3610:0129:26
9:28
#22814
20M
20.00 mi14:38:593:19:109:5712:34
9:15
#22544
21M
21.00 mi14:48:373:28:489:579:38
9:38
#22288
35K
21.75 mi14:55:143:35:259:546:37
8:51
#22136
23M
23.00 mi15:06:333:46:449:5111:19
9:02
#21898
24M
24.00 mi15:15:153:55:269:498:42
8:42
#21711
40K
24.85 mi15:23:104:03:219:477:55
9:16
#21579
25.2M
25.20 mi15:26:334:06:449:473:23
9:49
#21503
Finish
26.22 mi15:35:194:15:309:458:46
8:36
#21320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24968145281452823925(Top 90%)14046(Top 93%)14046(Top 266%)
10K6.21 mi3.10 mi24860+10814482+4614482+4624744(Top 93%)14422(Top 95%)14422(Top 273%)
15K9.32 mi3.11 mi24556+30414342+14014342+14023925(Top 90%)14046(Top 93%)14046(Top 266%)
20K12.43 mi3.11 mi24039+51714102+24014102+24022569(Top 85%)13424(Top 88%)13424(Top 254%)
Half13.11 mi0.68 mi23883+15614041+6114041+6120170(Top 76%)12397(Top 82%)12397(Top 235%)
25K15.53 mi2.42 mi23453+43013834+20713834+20720681(Top 78%)12569(Top 83%)12569(Top 238%)
30K18.64 mi3.11 mi22814+63913503+33113503+33119331(Top 73%)11932(Top 79%)11932(Top 226%)
20M20.00 mi1.36 mi22544+27013362+14113362+14117787(Top 67%)11144(Top 73%)11144(Top 211%)
21M21.00 mi1.00 mi22288+25613250+11213250+11216578(Top 62%)10609(Top 70%)10609(Top 201%)
35K21.75 mi0.75 mi22136+15213174+7613174+7617176(Top 65%)10795(Top 71%)10795(Top 204%)
23M23.00 mi1.25 mi21898+23813063+11113063+11116236(Top 61%)10353(Top 68%)10353(Top 196%)
24M24.00 mi1.00 mi21711+18712956+10712956+10715660(Top 59%)10030(Top 66%)10030(Top 190%)
40K24.85 mi0.85 mi21579+13212888+6812888+6817341(Top 65%)10737(Top 71%)10737(Top 203%)
25.2M25.20 mi0.35 mi21503+7612850+3812850+3816574(Top 62%)10386(Top 68%)10386(Top 197%)
Finish26.22 mi1.02 mi21320+18312763+8712763+8715992(Top 60%)10178(Top 67%)10178(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23925

Males

14046

M18-39

14046

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24744

Males

14422

M18-39

14422

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23925

Males

14046

M18-39

14046

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22569

Males

13424

M18-39

13424

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20170

Males

12397

M18-39

12397

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

20681

Males

12569

M18-39

12569

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19331

Males

11932

M18-39

11932

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17787

Males

11144

M18-39

11144

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16578

Males

10609

M18-39

10609

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

17176

Males

10795

M18-39

10795

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16236

Males

10353

M18-39

10353

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

15660

Males

10030

M18-39

10030

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17341

Males

10737

M18-39

10737

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16574

Males

10386

M18-39

10386

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15992

Males

10178

M18-39

10178

Passing Analysis

Category:
Athletes Passed
3806
Passed By
158
Net Change
+3648
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24968
5K → 10K245137+108#24968#24860
10K → 15K32016+304#24860#24556
15K → 20K5170+517#24556#24039
20K → Half1571+156#24039#23883
Half → 25K4300+430#23883#23453
25K → 30K6390+639#23453#22814
30K → 20M2700+270#22814#22544
20M → 21M2560+256#22544#22288
21M → 35K1531+152#22288#22136
35K → 23M2380+238#22136#21898
23M → 24M1881+187#21898#21711
24M → 40K1320+132#21711#21579
40K → 25.2M760+76#21579#21503
25.2M → Finish1852+183#21503#21320
TOTALS3806158+3648
📊

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