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BOSTON MARATHON 2023

David Berk

Bib: 10323•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M50-54)
#0 / 2052
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:24
Rank: #9896
Start → 5K
23:24 | 7:32/mi
10K· 6.21 mi
46:08
Rank: #9366 (+530)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:09:16
Rank: #9436 (-70)
10K → 15K
23:08 | 7:27/mi
20K· 12.43 mi
1:32:59
Rank: #9668 (-232)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:38:13
Rank: #9778 (-110)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:57:04
Rank: #9931 (-153)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:21:35
Rank: #9930 (+1)
25K → 30K
24:31 | 7:53/mi
20M
2:32:22
Rank: #9880 (+50)
30K → 20M
10:47 | 7:56/mi
21M
2:40:31
Rank: #9754 (+126)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:46:03
Rank: #9684 (+70)
21M → 35K
5:32 | 7:24/mi
23M
2:55:38
Rank: #9507 (+177)
35K → 23M
9:35 | 7:39/mi
24M
3:03:09
Rank: #9399 (+108)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
3:09:45
Rank: #9328 (+71)
24M → 40K
6:36 | 7:43/mi
25.2M
3:12:37
Rank: #9302 (+26)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:20:15
Rank: #9262 (+40)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:13
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:42:02
Pace7:47 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5623:247:3223:24
7:32
-
10K
6.21 mi11:12:4046:087:2522:44
7:19
-0:13
15K
9.32 mi11:35:481:09:167:2623:08
7:27
+0:08
20K
12.43 mi11:59:311:32:597:2923:43
7:38
+0:11
Half
13.11 mi12:04:451:38:137:305:14
7:40
+0:02
25K
15.53 mi12:23:361:57:047:3218:51
7:46
+0:06
30K
18.64 mi12:48:072:21:357:3624:31
7:53
+0:07
20M
20.00 mi12:58:542:32:227:3710:47
7:56
+0:03
21M
21.00 mi13:07:032:40:317:398:09
8:09
+0:13
35K
21.75 mi13:12:352:46:037:385:32
7:24
-0:45
23M
23.00 mi13:22:102:55:387:389:35
7:39
+0:15
24M
24.00 mi13:29:413:03:097:387:31
7:31
-0:08
40K
24.85 mi13:36:173:09:457:386:36
7:43
+0:12
25.2M
25.20 mi13:39:093:12:377:392:52
8:19
+0:36
Finish
26.22 mi13:46:473:20:157:397:38
7:29
-0:50

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

7:19 /mi

Average Pace

7:39 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:14

94% of race

Time at Steady Pace

11:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:49:5623:247:3223:24
7:32
#9896
10K
6.21 mi11:12:4046:087:2522:44
7:19
#9366
15K
9.32 mi11:35:481:09:167:2623:08
7:27
#9436
20K
12.43 mi11:59:311:32:597:2923:43
7:38
#9668
Half
13.11 mi12:04:451:38:137:305:14
7:40
#9778
25K
15.53 mi12:23:361:57:047:3218:51
7:46
#9931
30K
18.64 mi12:48:072:21:357:3624:31
7:53
#9930
20M
20.00 mi12:58:542:32:227:3710:47
7:56
#9880
21M
21.00 mi13:07:032:40:317:398:09
8:09
#9754
35K
21.75 mi13:12:352:46:037:385:32
7:24
#9684
23M
23.00 mi13:22:102:55:387:389:35
7:39
#9507
24M
24.00 mi13:29:413:03:097:387:31
7:31
#9399
40K
24.85 mi13:36:173:09:457:386:36
7:43
#9328
25.2M
25.20 mi13:39:093:12:377:392:52
8:19
#9302
Finish
26.22 mi13:46:473:20:157:397:38
7:29
#9262
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9896807580759715(Top 36%)7985(Top 53%)7985(Top 389%)
10K6.21 mi3.10 mi9366+5307798+2777798+2778973(Top 34%)7568(Top 50%)7568(Top 369%)
15K9.32 mi3.11 mi9436-707828-307828-309715(Top 36%)7985(Top 53%)7985(Top 389%)
20K12.43 mi3.11 mi9668-2327964-1367964-13610331(Top 39%)8248(Top 54%)8248(Top 402%)
Half13.11 mi0.68 mi9778-1108024-608024-6011532(Top 43%)8845(Top 58%)8845(Top 431%)
25K15.53 mi2.42 mi9931-1538096-728096-7210874(Top 41%)8434(Top 56%)8434(Top 411%)
30K18.64 mi3.11 mi9930+18054+428054+4210051(Top 38%)7848(Top 52%)7848(Top 382%)
20M20.00 mi1.36 mi9880+507999+557999+559771(Top 37%)7620(Top 50%)7620(Top 371%)
21M21.00 mi1.00 mi9754+1267910+897910+898295(Top 31%)6647(Top 44%)6647(Top 324%)
35K21.75 mi0.75 mi9684+707854+567854+567768(Top 29%)6364(Top 42%)6364(Top 310%)
23M23.00 mi1.25 mi9507+1777725+1297725+1297457(Top 28%)6098(Top 40%)6098(Top 297%)
24M24.00 mi1.00 mi9399+1087625+1007625+1007810(Top 29%)6205(Top 41%)6205(Top 302%)
40K24.85 mi0.85 mi9328+717557+687557+688088(Top 30%)6307(Top 42%)6307(Top 307%)
25.2M25.20 mi0.35 mi9302+267533+247533+248350(Top 31%)6382(Top 42%)6382(Top 311%)
Finish26.22 mi1.02 mi9262+407488+457488+458470(Top 32%)6446(Top 42%)6446(Top 314%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9715

Males

7985

M50-54

7985

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

8973

Males

7568

M50-54

7568

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9715

Males

7985

M50-54

7985

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10331

Males

8248

M50-54

8248

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11532

Males

8845

M50-54

8845

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10874

Males

8434

M50-54

8434

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10051

Males

7848

M50-54

7848

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9771

Males

7620

M50-54

7620

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8295

Males

6647

M50-54

6647

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7768

Males

6364

M50-54

6364

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7457

Males

6098

M50-54

6098

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

7810

Males

6205

M50-54

6205

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8088

Males

6307

M50-54

6307

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8350

Males

6382

M50-54

6382

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8470

Males

6446

M50-54

6446

Passing Analysis

Category:
Athletes Passed
1948*
Passed By
1313
Net Change
+634
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9896
5K → 10K632102+530#9896#9366
10K → 15K129199-70#9366#9436
15K → 20K75307-232#9436#9668
20K → Half6116-110#9668#9778
Half → 25K78230-153#9778#9931
25K → 30K155*154+1#9931#9930
30K → 20M10959+50#9930#9880
20M → 21M14822+126#9880#9754
21M → 35K8111+70#9754#9684
35K → 23M19013+177#9684#9507
23M → 24M13123+108#9507#9399
24M → 40K10029+71#9399#9328
40K → 25.2M3913+26#9328#9302
25.2M → Finish7535+40#9302#9262
TOTALS1948*1313+634

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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