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BOSTON MARATHON 2023

Brendan Crowley

MA

Bib: 27572 M

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:57/mi
27:49
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:09/mi
53:09
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:53/mi
1:17:39
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:50/mi
1:41:59
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:48/mi
1:47:18
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:51/mi
2:06:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:09/mi
2:31:40
↑ 181↓ 1480.2%
138 ft elev
20M
8:23/mi
2:43:03
↑ 64↓ 500.2%
148 ft elev
21M
8:38/mi
2:51:41
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:01/mi
2:57:41
↑ 17↓ 861.7%
156 ft elev
23M
8:22/mi
3:08:09
↑ 23↓ 630.6%
116 ft elev
24M
8:30/mi
3:16:39
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:43/mi
3:24:06
↓ 200.3%
20 ft elev
25.2M
9:08/mi
3:27:15
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:08/mi
3:35:32
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:47:18
Pace8:11 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:14
Pace8:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0827:498:5727:49
8:57
-
10K
6.21 mi12:15:2853:098:3325:20
8:09
-0:48
15K
9.32 mi12:39:581:17:398:2024:30
7:53
-0:16
20K
12.43 mi13:04:181:41:598:1224:20
7:50
-0:03
Half
13.11 mi13:09:371:47:188:115:19
7:48
-0:02
25K
15.53 mi13:28:392:06:208:0819:02
7:51
+0:03
30K
18.64 mi13:53:592:31:408:0825:20
8:09
+0:18
20M
20.00 mi14:05:222:43:038:0911:23
8:23
+0:14
21M
21.00 mi14:14:002:51:418:118:38
8:38
+0:15
35K
21.75 mi14:20:002:57:418:106:00
8:01
-0:37
23M
23.00 mi14:30:283:08:098:1110:28
8:22
+0:21
24M
24.00 mi14:38:583:16:398:128:30
8:30
+0:08
40K
24.85 mi14:46:253:24:068:137:27
8:43
+0:13
25.2M
25.20 mi14:49:343:27:158:133:09
9:08
+0:25
Finish
26.22 mi14:57:513:35:328:148:17
8:08
-1:00

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

7:48 /mi

Average Pace

8:14 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:29

78% of race

Time at Steady Pace

47:03

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:50:0827:498:5727:49
8:57
#20223
10K
6.21 mi12:15:2853:098:3325:20
8:09
#18210
15K
9.32 mi12:39:581:17:398:2024:30
7:53
#16725
20K
12.43 mi13:04:181:41:598:1224:20
7:50
#15619
Half
13.11 mi13:09:371:47:188:115:19
7:48
#15481
25K
15.53 mi13:28:392:06:208:0819:02
7:51
#14858
30K
18.64 mi13:53:592:31:408:0825:20
8:09
#14371
20M
20.00 mi14:05:222:43:038:0911:23
8:23
#14231
21M
21.00 mi14:14:002:51:418:118:38
8:38
#14023
35K
21.75 mi14:20:002:57:418:106:00
8:01
#13943
23M
23.00 mi14:30:283:08:098:1110:28
8:22
#13811
24M
24.00 mi14:38:583:16:398:128:30
8:30
#13829
40K
24.85 mi14:46:253:24:068:137:27
8:43
#13848
25.2M
25.20 mi14:49:343:27:158:133:09
9:08
#13832
Finish
26.22 mi14:57:513:35:328:148:17
8:08
#13780
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20223122461224613398(Top 50%)9658(Top 64%)9658(Top 183%)
10K6.21 mi3.10 mi18210+201311541+70511541+70515919(Top 60%)10674(Top 70%)10674(Top 202%)
15K9.32 mi3.11 mi16725+148510957+58410957+58413398(Top 50%)9658(Top 64%)9658(Top 183%)
20K12.43 mi3.11 mi15619+110610529+42810529+42811999(Top 45%)9012(Top 59%)9012(Top 171%)
Half13.11 mi0.68 mi15481+13810474+5510474+5512621(Top 47%)9346(Top 62%)9346(Top 177%)
25K15.53 mi2.42 mi14858+62310215+25910215+25911511(Top 43%)8726(Top 57%)8726(Top 165%)
30K18.64 mi3.11 mi14371+4879972+2439972+24312022(Top 45%)8815(Top 58%)8815(Top 167%)
20M20.00 mi1.36 mi14231+1409902+709902+7012858(Top 48%)9064(Top 60%)9064(Top 172%)
21M21.00 mi1.00 mi14023+2089807+959807+9511251(Top 42%)8241(Top 54%)8241(Top 156%)
35K21.75 mi0.75 mi13943+809762+459762+4512256(Top 46%)8674(Top 57%)8674(Top 164%)
23M23.00 mi1.25 mi13811+1329687+759687+7512296(Top 46%)8601(Top 57%)8601(Top 163%)
24M24.00 mi1.00 mi13829-189659+289659+2814449(Top 54%)9502(Top 63%)9502(Top 180%)
40K24.85 mi0.85 mi13848-199650+99650+914553(Top 55%)9478(Top 62%)9478(Top 179%)
25.2M25.20 mi0.35 mi13832+169639+119639+1113233(Top 50%)8874(Top 58%)8874(Top 168%)
Finish26.22 mi1.02 mi13780+529605+349605+3412947(Top 49%)8744(Top 58%)8744(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13398

Males

9658

M18-39

9658

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

15919

Males

10674

M18-39

10674

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13398

Males

9658

M18-39

9658

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11999

Males

9012

M18-39

9012

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

12621

Males

9346

M18-39

9346

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11511

Males

8726

M18-39

8726

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12022

Males

8815

M18-39

8815

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12858

Males

9064

M18-39

9064

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11251

Males

8241

M18-39

8241

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12256

Males

8674

M18-39

8674

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12296

Males

8601

M18-39

8601

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

14449

Males

9502

M18-39

9502

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14553

Males

9478

M18-39

9478

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13233

Males

8874

M18-39

8874

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

12947

Males

8744

M18-39

8744

Passing Analysis

Category:
Athletes Passed
6778
Passed By
335
Net Change
+6443
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20223
5K → 10K202815+2013#20223#18210
10K → 15K14894+1485#18210#16725
15K → 20K11071+1106#16725#15619
20K → Half1380+138#15619#15481
Half → 25K6241+623#15481#14858
25K → 30K49710+487#14858#14371
30K → 20M16020+140#14371#14231
20M → 21M22517+208#14231#14023
21M → 35K9616+80#14023#13943
35K → 23M15624+132#13943#13811
23M → 24M6583-18#13811#13829
24M → 40K6584-19#13829#13848
40K → 25.2M2913+16#13848#13832
25.2M → Finish9947+52#13832#13780
TOTALS6778335+6443
📊

Passing Visuals

Category:
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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