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BOSTON MARATHON 2023

Daniel Berdichevsky

Bib: 8288•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
23:41
Rank: #10718
Start → 5K
23:41 | 7:37/mi
10K· 6.21 mi
47:06
Rank: #10728 (-10)
5K → 10K
23:25 | 7:32/mi
15K· 9.32 mi
1:09:47
Rank: #9912 (+816)
10K → 15K
22:41 | 7:18/mi
20K· 12.43 mi
1:32:29
Rank: #9342 (+570)
15K → 20K
22:42 | 7:18/mi
Half· 13.11 mi
1:37:27
Rank: #9283 (+59)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:54:58
Rank: #8840 (+443)
Half → 25K
17:31 | 7:13/mi
30K· 18.64 mi
2:18:47
Rank: #8714 (+126)
25K → 30K
23:49 | 7:40/mi
20M
2:29:25
Rank: #8724 (-10)
30K → 20M
10:38 | 7:49/mi
21M
2:37:36
Rank: #8687 (+37)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:43:07
Rank: #8638 (+49)
21M → 35K
5:31 | 7:22/mi
23M
2:52:46
Rank: #8549 (+89)
35K → 23M
9:39 | 7:42/mi
24M
3:00:20
Rank: #8508 (+41)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
3:07:13
Rank: #8576 (-68)
24M → 40K
6:53 | 8:03/mi
25.2M
3:10:11
Rank: #8590 (-14)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:18:13
Rank: #8662 (-72)
25.2M → Finish
8:02 | 7:53/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:27
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:40:46
Pace7:41 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5523:417:3723:41
7:37
-
10K
6.21 mi11:12:2047:067:3523:25
7:32
-0:05
15K
9.32 mi11:35:011:09:477:2922:41
7:18
-0:14
20K
12.43 mi11:57:431:32:297:2722:42
7:18
0:00
Half
13.11 mi12:02:411:37:277:264:58
7:17
-0:01
25K
15.53 mi12:20:121:54:587:2417:31
7:13
-0:04
30K
18.64 mi12:44:012:18:477:2723:49
7:40
+0:27
20M
20.00 mi12:54:392:29:257:2810:38
7:49
+0:09
21M
21.00 mi13:02:502:37:367:308:11
8:11
+0:22
35K
21.75 mi13:08:212:43:077:305:31
7:22
-0:49
23M
23.00 mi13:18:002:52:467:319:39
7:42
+0:20
24M
24.00 mi13:25:343:00:207:317:34
7:34
-0:08
40K
24.85 mi13:32:273:07:137:326:53
8:03
+0:29
25.2M
25.20 mi13:35:253:10:117:332:58
8:36
+0:33
Finish
26.22 mi13:43:273:18:137:348:02
7:53
-0:43

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

7:13 /mi

Average Pace

7:34 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:00:11

91% of race

Time at Steady Pace

15:04

8% of race

Time at Slower Pace

2:58

1% of race

Average Pace: 7:34 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:48:5523:417:3723:41
7:37
#10718
10K
6.21 mi11:12:2047:067:3523:25
7:32
#10728
15K
9.32 mi11:35:011:09:477:2922:41
7:18
#9912
20K
12.43 mi11:57:431:32:297:2722:42
7:18
#9342
Half
13.11 mi12:02:411:37:277:264:58
7:17
#9283
25K
15.53 mi12:20:121:54:587:2417:31
7:13
#8840
30K
18.64 mi12:44:012:18:477:2723:49
7:40
#8714
20M
20.00 mi12:54:392:29:257:2810:38
7:49
#8724
21M
21.00 mi13:02:502:37:367:308:11
8:11
#8687
35K
21.75 mi13:08:212:43:077:305:31
7:22
#8638
23M
23.00 mi13:18:002:52:467:319:39
7:42
#8549
24M
24.00 mi13:25:343:00:207:317:34
7:34
#8508
40K
24.85 mi13:32:273:07:137:326:53
8:03
#8576
25.2M
25.20 mi13:35:253:10:117:332:58
8:36
#8590
Finish
26.22 mi13:43:273:18:137:348:02
7:53
#8662
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi10718851685168549(Top 32%)7273(Top 48%)7273(Top 325%)
10K6.21 mi3.10 mi10728-108520-48520-410750(Top 40%)8551(Top 56%)8551(Top 382%)
15K9.32 mi3.11 mi9912+8168111+4098111+4098549(Top 32%)7273(Top 48%)7273(Top 325%)
20K12.43 mi3.11 mi9342+5707755+3567755+3567825(Top 29%)6771(Top 45%)6771(Top 302%)
Half13.11 mi0.68 mi9283+597720+357720+358426(Top 32%)7165(Top 47%)7165(Top 320%)
25K15.53 mi2.42 mi8840+4437442+2787442+2786824(Top 26%)6029(Top 40%)6029(Top 269%)
30K18.64 mi3.11 mi8714+1267328+1147328+1148408(Top 32%)6930(Top 46%)6930(Top 309%)
20M20.00 mi1.36 mi8724-107313+157313+159037(Top 34%)7212(Top 48%)7212(Top 322%)
21M21.00 mi1.00 mi8687+377273+407273+408515(Top 32%)6782(Top 45%)6782(Top 303%)
35K21.75 mi0.75 mi8638+497230+437230+437637(Top 29%)6279(Top 41%)6279(Top 280%)
23M23.00 mi1.25 mi8549+897148+827148+827757(Top 29%)6282(Top 41%)6282(Top 280%)
24M24.00 mi1.00 mi8508+417105+437105+438144(Top 31%)6400(Top 42%)6400(Top 286%)
40K24.85 mi0.85 mi8576-687127-227127-2210333(Top 39%)7500(Top 49%)7500(Top 335%)
25.2M25.20 mi0.35 mi8590-147129-27129-210096(Top 38%)7330(Top 48%)7330(Top 327%)
Finish26.22 mi1.02 mi8662-727142-137142-1311250(Top 42%)7907(Top 52%)7907(Top 353%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8549

Males

7273

M40-44

7273

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10750

Males

8551

M40-44

8551

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8549

Males

7273

M40-44

7273

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7825

Males

6771

M40-44

6771

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8426

Males

7165

M40-44

7165

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6824

Males

6029

M40-44

6029

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8408

Males

6930

M40-44

6930

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9037

Males

7212

M40-44

7212

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8515

Males

6782

M40-44

6782

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7637

Males

6279

M40-44

6279

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7757

Males

6282

M40-44

6282

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8144

Males

6400

M40-44

6400

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10333

Males

7500

M40-44

7500

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10096

Males

7330

M40-44

7330

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11250

Males

7907

M40-44

7907

Passing Analysis

Category:
Athletes Passed
2965*
Passed By
909
Net Change
+2056
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10718
5K → 10K293303-10#10718#10728
10K → 15K825*9+816#10728#9912
15K → 20K577*7+570#9912#9342
20K → Half667+59#9342#9283
Half → 25K4430+443#9283#8840
25K → 30K22599+126#8840#8714
30K → 20M7080-10#8714#8724
20M → 21M9255+37#8724#8687
21M → 35K6516+49#8687#8638
35K → 23M12738+89#8638#8549
23M → 24M7938+41#8549#8508
24M → 40K43111-68#8508#8576
40K → 25.2M2135-14#8576#8590
25.2M → Finish39111-72#8590#8662
TOTALS2965*909+2056

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

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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