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BOSTON MARATHON 2023

Joshua Chambers

Bib: 6001•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Masters (Masters Men)
#0 / 9891
Top 15%
Division (M40-44)
#0 / 2241
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #4190
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
42:00
Rank: #4592 (-402)
5K → 10K
21:01 | 6:46/mi
15K· 9.32 mi
1:03:09
Rank: #4754 (-162)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:24:34
Rank: #4898 (-144)
15K → 20K
21:25 | 6:54/mi
Half· 13.11 mi
1:29:15
Rank: #4937 (-39)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:46:08
Rank: #5011 (-74)
Half → 25K
16:53 | 6:58/mi
30K· 18.64 mi
2:08:43
Rank: #5218 (-207)
25K → 30K
22:35 | 7:16/mi
20M
2:18:25
Rank: #5153 (+65)
30K → 20M
9:42 | 7:08/mi
21M
2:25:58
Rank: #5092 (+61)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:31:03
Rank: #5043 (+49)
21M → 35K
5:05 | 6:48/mi
23M
2:39:59
Rank: #4953 (+90)
35K → 23M
8:56 | 7:08/mi
24M
2:46:53
Rank: #4876 (+77)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:53:13
Rank: #4895 (-19)
24M → 40K
6:20 | 7:24/mi
25.2M
2:55:50
Rank: #4866 (+29)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:02:38
Rank: #4747 (+119)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:15
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:33:23
Pace7:07 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4120:596:4520:59
6:45
-
10K
6.21 mi10:45:4242:006:4621:01
6:46
+0:01
15K
9.32 mi11:06:511:03:096:4721:09
6:48
+0:02
20K
12.43 mi11:28:161:24:346:4821:25
6:54
+0:06
Half
13.11 mi11:32:571:29:156:484:41
6:52
-0:02
25K
15.53 mi11:49:501:46:086:5016:53
6:58
+0:06
30K
18.64 mi12:12:252:08:436:5422:35
7:16
+0:18
20M
20.00 mi12:22:072:18:256:559:42
7:08
-0:08
21M
21.00 mi12:29:402:25:586:577:33
7:33
+0:25
35K
21.75 mi12:34:452:31:036:575:05
6:48
-0:45
23M
23.00 mi12:43:412:39:596:578:56
7:08
+0:20
24M
24.00 mi12:50:352:46:536:576:54
6:54
-0:14
40K
24.85 mi12:56:552:53:136:586:20
7:24
+0:30
25.2M
25.20 mi12:59:322:55:506:592:37
7:35
+0:11
Finish
26.22 mi13:06:203:02:386:586:48
6:40
-0:55

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

6:58 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:08

91% of race

Time at Steady Pace

16:30

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:58 /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 mi10:24:4120:596:4520:59
6:45
#4190
10K
6.21 mi10:45:4242:006:4621:01
6:46
#4592
15K
9.32 mi11:06:511:03:096:4721:09
6:48
#4754
20K
12.43 mi11:28:161:24:346:4821:25
6:54
#4898
Half
13.11 mi11:32:571:29:156:484:41
6:52
#4937
25K
15.53 mi11:49:501:46:086:5016:53
6:58
#5011
30K
18.64 mi12:12:252:08:436:5422:35
7:16
#5218
20M
20.00 mi12:22:072:18:256:559:42
7:08
#5153
21M
21.00 mi12:29:402:25:586:577:33
7:33
#5092
35K
21.75 mi12:34:452:31:036:575:05
6:48
#5043
23M
23.00 mi12:43:412:39:596:578:56
7:08
#4953
24M
24.00 mi12:50:352:46:536:576:54
6:54
#4876
40K
24.85 mi12:56:552:53:136:586:20
7:24
#4895
25.2M
25.20 mi12:59:322:55:506:592:37
7:35
#4866
Finish
26.22 mi13:06:203:02:386:586:48
6:40
#4747
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4190392639265193(Top 20%)4801(Top 32%)4801(Top 214%)
10K6.21 mi3.10 mi4592-4024288-3624288-3624943(Top 19%)4582(Top 30%)4582(Top 204%)
15K9.32 mi3.11 mi4754-1624426-1384426-1385193(Top 20%)4801(Top 32%)4801(Top 214%)
20K12.43 mi3.11 mi4898-1444562-1364562-1365287(Top 20%)4880(Top 32%)4880(Top 218%)
Half13.11 mi0.68 mi4937-394593-314593-315713(Top 21%)5245(Top 35%)5245(Top 234%)
25K15.53 mi2.42 mi5011-744651-584651-585355(Top 20%)4935(Top 33%)4935(Top 220%)
30K18.64 mi3.11 mi5218-2074828-1774828-1775856(Top 22%)5265(Top 35%)5265(Top 235%)
20M20.00 mi1.36 mi5153+654765+634765+634792(Top 18%)4372(Top 29%)4372(Top 195%)
21M21.00 mi1.00 mi5092+614707+584707+584819(Top 18%)4346(Top 29%)4346(Top 194%)
35K21.75 mi0.75 mi5043+494660+474660+474182(Top 16%)3832(Top 25%)3832(Top 171%)
23M23.00 mi1.25 mi4953+904580+804580+804481(Top 17%)4067(Top 27%)4067(Top 181%)
24M24.00 mi1.00 mi4876+774512+684512+684168(Top 16%)3794(Top 25%)3794(Top 169%)
40K24.85 mi0.85 mi4895-194515-34515-36092(Top 23%)5066(Top 33%)5066(Top 226%)
25.2M25.20 mi0.35 mi4866+294488+274488+274311(Top 16%)3781(Top 25%)3781(Top 169%)
Finish26.22 mi1.02 mi4747+1194384+1044384+1043373(Top 13%)3031(Top 20%)3031(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5193

Males

4801

M40-44

4801

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4943

Males

4582

M40-44

4582

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5193

Males

4801

M40-44

4801

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5287

Males

4880

M40-44

4880

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5713

Males

5245

M40-44

5245

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5355

Males

4935

M40-44

4935

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5856

Males

5265

M40-44

5265

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4792

Males

4372

M40-44

4372

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4819

Males

4346

M40-44

4346

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4182

Males

3832

M40-44

3832

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4481

Males

4067

M40-44

4067

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4168

Males

3794

M40-44

3794

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6092

Males

5066

M40-44

5066

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4311

Males

3781

M40-44

3781

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3373

Males

3031

M40-44

3031

Passing Analysis

Category:
Athletes Passed
1022
Passed By
1579
Net Change
-557
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4190
5K → 10K80482-402#4190#4592
10K → 15K72234-162#4592#4754
15K → 20K56200-144#4754#4898
20K → Half746-39#4898#4937
Half → 25K81155-74#4937#5011
25K → 30K81288-207#5011#5218
30K → 20M10338+65#5218#5153
20M → 21M8827+61#5153#5092
21M → 35K5910+49#5092#5043
35K → 23M11121+90#5043#4953
23M → 24M9114+77#4953#4876
24M → 40K3352-19#4876#4895
40K → 25.2M323+29#4895#4866
25.2M → Finish1289+119#4866#4747
TOTALS10221579-557
📊

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