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BOSTON MARATHON 2023

Michael Chambers

Bib: 26421•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
28:09
Rank: #20702
Start → 5K
28:09 | 9:04/mi
10K· 6.21 mi
56:24
Rank: #20962 (-260)
5K → 10K
28:15 | 9:06/mi
15K· 9.32 mi
1:24:38
Rank: #20941 (+21)
10K → 15K
28:14 | 9:05/mi
20K· 12.43 mi
1:52:54
Rank: #20704 (+237)
15K → 20K
28:16 | 9:06/mi
Half· 13.11 mi
1:59:00
Rank: #20675 (+29)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:22:09
Rank: #20766 (-91)
Half → 25K
23:09 | 9:33/mi
30K· 18.64 mi
2:52:30
Rank: #20646 (+120)
25K → 30K
30:21 | 9:46/mi
20M
3:06:17
Rank: #20651 (-5)
30K → 20M
13:47 | 10:09/mi
21M
3:17:50
Rank: #20764 (-113)
20M → 21M
11:33 | 11:33/mi
35K· 21.75 mi
3:25:18
Rank: #20765 (-1)
21M → 35K
7:28 | 9:59/mi
23M
3:38:15
Rank: #20770 (-5)
35K → 23M
12:57 | 10:21/mi
24M
3:48:40
Rank: #20809 (-39)
23M → 24M
10:25 | 10:25/mi
40K· 24.85 mi
3:57:52
Rank: #20846 (-37)
24M → 40K
9:12 | 10:46/mi
25.2M
4:01:50
Rank: #20860 (-14)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:12:18
Rank: #20919 (-59)
25.2M → Finish
10:28 | 10:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:00
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:13:18
Pace10:10 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1528:099:0428:09
9:04
-
10K
6.21 mi12:11:3056:249:0528:15
9:06
+0:02
15K
9.32 mi12:39:441:24:389:0528:14
9:05
-0:01
20K
12.43 mi13:08:001:52:549:0528:16
9:06
+0:01
Half
13.11 mi13:14:061:59:009:056:06
8:56
-0:10
25K
15.53 mi13:37:152:22:099:0923:09
9:33
+0:37
30K
18.64 mi14:07:362:52:309:1530:21
9:46
+0:13
20M
20.00 mi14:21:233:06:179:1913:47
10:09
+0:23
21M
21.00 mi14:32:563:17:509:2511:33
11:33
+1:24
35K
21.75 mi14:40:243:25:189:267:28
9:59
-1:34
23M
23.00 mi14:53:213:38:159:2912:57
10:21
+0:22
24M
24.00 mi15:03:463:48:409:3210:25
10:25
+0:04
40K
24.85 mi15:12:583:57:529:349:12
10:46
+0:21
25.2M
25.20 mi15:16:564:01:509:363:58
11:30
+0:44
Finish
26.22 mi15:27:244:12:189:3810:28
10:16
-1:14

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

8:56 /mi

Average Pace

9:38 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:09

56% of race

Time at Steady Pace

1:15:01

30% of race

Time at Slower Pace

35:08

14% of race

Average Pace: 9:37 /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 mi11:43:1528:099:0428:09
9:04
#20702
10K
6.21 mi12:11:3056:249:0528:15
9:06
#20962
15K
9.32 mi12:39:441:24:389:0528:14
9:05
#20941
20K
12.43 mi13:08:001:52:549:0528:16
9:06
#20704
Half
13.11 mi13:14:061:59:009:056:06
8:56
#20675
25K
15.53 mi13:37:152:22:099:0923:09
9:33
#20766
30K
18.64 mi14:07:362:52:309:1530:21
9:46
#20646
20M
20.00 mi14:21:233:06:179:1913:47
10:09
#20651
21M
21.00 mi14:32:563:17:509:2511:33
11:33
#20764
35K
21.75 mi14:40:243:25:189:267:28
9:59
#20765
23M
23.00 mi14:53:213:38:159:2912:57
10:21
#20770
24M
24.00 mi15:03:463:48:409:3210:25
10:25
#20809
40K
24.85 mi15:12:583:57:529:349:12
10:46
#20846
25.2M
25.20 mi15:16:564:01:509:363:58
11:30
#20860
Finish
26.22 mi15:27:244:12:189:3810:28
10:16
#20919
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20702124621246220895(Top 78%)12692(Top 84%)12692(Top 240%)
10K6.21 mi3.10 mi20962-26012639-17712639-17721234(Top 80%)12805(Top 84%)12805(Top 242%)
15K9.32 mi3.11 mi20941+2112666-2712666-2720895(Top 78%)12692(Top 84%)12692(Top 240%)
20K12.43 mi3.11 mi20704+23712576+9012576+9020133(Top 76%)12368(Top 81%)12368(Top 234%)
Half13.11 mi0.68 mi20675+2912564+1212564+1220163(Top 76%)12390(Top 82%)12390(Top 234%)
25K15.53 mi2.42 mi20766-9112612-4812612-4820990(Top 79%)12705(Top 84%)12705(Top 240%)
30K18.64 mi3.11 mi20646+12012546+6612546+6620357(Top 76%)12363(Top 81%)12363(Top 234%)
20M20.00 mi1.36 mi20651-512526+2012526+2020857(Top 78%)12503(Top 82%)12503(Top 237%)
21M21.00 mi1.00 mi20764-11312574-4812574-4821952(Top 82%)12963(Top 85%)12963(Top 245%)
35K21.75 mi0.75 mi20765-112557+1712557+1721190(Top 80%)12572(Top 83%)12572(Top 238%)
23M23.00 mi1.25 mi20770-512547+1012547+1020925(Top 79%)12421(Top 82%)12421(Top 235%)
24M24.00 mi1.00 mi20809-3912553-612553-621830(Top 82%)12790(Top 84%)12790(Top 242%)
40K24.85 mi0.85 mi20846-3712559-612559-621840(Top 82%)12752(Top 84%)12752(Top 241%)
25.2M25.20 mi0.35 mi20860-1412557+212557+221549(Top 81%)12640(Top 83%)12640(Top 239%)
Finish26.22 mi1.02 mi20919-5912570-1312570-1322452(Top 84%)13071(Top 86%)13071(Top 247%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20895

Males

12692

M18-39

12692

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21234

Males

12805

M18-39

12805

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20895

Males

12692

M18-39

12692

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20133

Males

12368

M18-39

12368

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20163

Males

12390

M18-39

12390

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

20990

Males

12705

M18-39

12705

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20357

Males

12363

M18-39

12363

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20857

Males

12503

M18-39

12503

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21952

Males

12963

M18-39

12963

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21190

Males

12572

M18-39

12572

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

20925

Males

12421

M18-39

12421

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21830

Males

12790

M18-39

12790

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21840

Males

12752

M18-39

12752

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21549

Males

12640

M18-39

12640

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22452

Males

13071

M18-39

13071

Passing Analysis

Category:
Athletes Passed
1292
Passed By
1509
Net Change
-217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20702
5K → 10K188448-260#20702#20962
10K → 15K186165+21#20962#20941
15K → 20K29356+237#20941#20704
20K → Half4516+29#20704#20675
Half → 25K78169-91#20675#20766
25K → 30K20080+120#20766#20646
30K → 20M6671-5#20646#20651
20M → 21M34147-113#20651#20764
21M → 35K4142-1#20764#20765
35K → 23M6469-5#20765#20770
23M → 24M3069-39#20770#20809
24M → 40K2663-37#20809#20846
40K → 25.2M1226-14#20846#20860
25.2M → Finish2988-59#20860#20919
TOTALS12921509-217
📊

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