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BOSTON MARATHON 2023

Peter Decrock

Bib: 9977•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16092
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
49:53
Rank: #14575 (+1517)
5K → 10K
24:07 | 7:46/mi
15K· 9.32 mi
1:14:35
Rank: #14366 (+209)
10K → 15K
24:42 | 7:57/mi
20K· 12.43 mi
1:41:04
Rank: #15112 (-746)
15K → 20K
26:29 | 8:31/mi
Half· 13.11 mi
1:46:34
Rank: #15083 (+29)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:06:55
Rank: #15136 (-53)
Half → 25K
20:21 | 8:24/mi
30K· 18.64 mi
2:34:01
Rank: #15210 (-74)
25K → 30K
27:06 | 8:43/mi
20M
2:46:09
Rank: #15286 (-76)
30K → 20M
12:08 | 8:56/mi
21M
2:56:55
Rank: #15693 (-407)
20M → 21M
10:46 | 10:46/mi
35K· 21.75 mi
3:03:56
Rank: #15839 (-146)
21M → 35K
7:01 | 9:23/mi
23M
3:15:41
Rank: #16005 (-166)
35K → 23M
11:45 | 9:23/mi
24M
3:29:21
Rank: #17238 (-1233)
23M → 24M
13:40 | 13:40/mi
40K· 24.85 mi
3:39:28
Rank: #17789 (-551)
24M → 40K
10:07 | 11:50/mi
25.2M
3:43:16
Rank: #17860 (-71)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:54:56
Rank: #18361 (-501)
25.2M → Finish
11:40 | 11:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:34
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:08:22
Pace9:48 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5025:468:1825:46
8:18
-
10K
6.21 mi11:15:5749:538:0224:07
7:46
-0:32
15K
9.32 mi11:40:391:14:358:0024:42
7:57
+0:11
20K
12.43 mi12:07:081:41:048:0826:29
8:31
+0:34
Half
13.11 mi12:12:381:46:348:085:30
8:04
-0:27
25K
15.53 mi12:32:592:06:558:1020:21
8:24
+0:20
30K
18.64 mi13:00:052:34:018:1627:06
8:43
+0:19
20M
20.00 mi13:12:132:46:098:1812:08
8:56
+0:13
21M
21.00 mi13:22:592:56:558:2510:46
10:46
+1:50
35K
21.75 mi13:30:003:03:568:277:01
9:23
-1:23
23M
23.00 mi13:41:453:15:418:3011:45
9:23
0:00
24M
24.00 mi13:55:253:29:218:4313:40
13:40
+4:17
40K
24.85 mi14:05:323:39:288:5010:07
11:50
-1:50
25.2M
25.20 mi14:09:203:43:168:523:48
11:01
-0:49
Finish
26.22 mi14:21:003:54:568:5811:40
11:27
+0:26

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

7:46 /mi

Average Pace

8:58 /mi

Slowest Pace

13:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:19

23% of race

Time at Steady Pace

2:10:36

56% of race

Time at Slower Pace

50:01

21% of race

Average Pace: 8:58 /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 mi10:51:5025:468:1825:46
8:18
#16092
10K
6.21 mi11:15:5749:538:0224:07
7:46
#14575
15K
9.32 mi11:40:391:14:358:0024:42
7:57
#14366
20K
12.43 mi12:07:081:41:048:0826:29
8:31
#15112
Half
13.11 mi12:12:381:46:348:085:30
8:04
#15083
25K
15.53 mi12:32:592:06:558:1020:21
8:24
#15136
30K
18.64 mi13:00:052:34:018:1627:06
8:43
#15210
20M
20.00 mi13:12:132:46:098:1812:08
8:56
#15286
21M
21.00 mi13:22:592:56:558:2510:46
10:46
#15693
35K
21.75 mi13:30:003:03:568:277:01
9:23
#15839
23M
23.00 mi13:41:453:15:418:3011:45
9:23
#16005
24M
24.00 mi13:55:253:29:218:4313:40
13:40
#17238
40K
24.85 mi14:05:323:39:288:5010:07
11:50
#17789
25.2M
25.20 mi14:09:203:43:168:523:48
11:01
#17860
Finish
26.22 mi14:21:003:54:568:5811:40
11:27
#18361
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi16092107321073213995(Top 53%)9900(Top 65%)9900(Top 442%)
10K6.21 mi3.10 mi14575+151710168+56410168+56412786(Top 48%)9467(Top 62%)9467(Top 422%)
15K9.32 mi3.11 mi14366+20910073+9510073+9513995(Top 53%)9900(Top 65%)9900(Top 442%)
20K12.43 mi3.11 mi15112-74610337-26410337-26417009(Top 64%)11064(Top 73%)11064(Top 494%)
Half13.11 mi0.68 mi15083+2910328+910328+914838(Top 56%)10255(Top 68%)10255(Top 458%)
25K15.53 mi2.42 mi15136-5310326+210326+215536(Top 58%)10361(Top 68%)10361(Top 462%)
30K18.64 mi3.11 mi15210-7410301+2510301+2515628(Top 59%)10322(Top 68%)10322(Top 461%)
20M20.00 mi1.36 mi15286-7610306-510306-516160(Top 61%)10483(Top 69%)10483(Top 468%)
21M21.00 mi1.00 mi15693-40710430-12410430-12420284(Top 76%)12179(Top 80%)12179(Top 543%)
35K21.75 mi0.75 mi15839-14610483-5310483-5319418(Top 73%)11777(Top 78%)11777(Top 526%)
23M23.00 mi1.25 mi16005-16610523-4010523-4017870(Top 67%)11064(Top 73%)11064(Top 494%)
24M24.00 mi1.00 mi17238-123311048-52511048-52525901(Top 97%)14762(Top 97%)14762(Top 659%)
40K24.85 mi0.85 mi17789-55111259-21111259-21123667(Top 89%)13615(Top 90%)13615(Top 608%)
25.2M25.20 mi0.35 mi17860-7111292-3311292-3320476(Top 77%)12143(Top 80%)12143(Top 542%)
Finish26.22 mi1.02 mi18361-50111484-19211484-19224614(Top 92%)14125(Top 93%)14125(Top 630%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

13995

Males

9900

M40-44

9900

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12786

Males

9467

M40-44

9467

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

13995

Males

9900

M40-44

9900

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17009

Males

11064

M40-44

11064

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14838

Males

10255

M40-44

10255

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15536

Males

10361

M40-44

10361

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15628

Males

10322

M40-44

10322

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16160

Males

10483

M40-44

10483

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20284

Males

12179

M40-44

12179

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

19418

Males

11777

M40-44

11777

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17870

Males

11064

M40-44

11064

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25901

Males

14762

M40-44

14762

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23667

Males

13615

M40-44

13615

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20476

Males

12143

M40-44

12143

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24614

Males

14125

M40-44

14125

Passing Analysis

Category:
Athletes Passed
2378
Passed By
4647
Net Change
-2269
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16092
5K → 10K154326+1517#16092#14575
10K → 15K29990+209#14575#14366
15K → 20K48794-746#14366#15112
20K → Half5324+29#15112#15083
Half → 25K119172-53#15083#15136
25K → 30K155229-74#15136#15210
30K → 20M59135-76#15210#15286
20M → 21M23430-407#15286#15693
21M → 35K19165-146#15693#15839
35K → 23M43209-166#15839#16005
23M → 24M31236-1233#16005#17238
24M → 40K4555-551#17238#17789
40K → 25.2M677-71#17789#17860
25.2M → Finish4505-501#17860#18361
TOTALS23784647-2269
📊

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