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BOSTON MARATHON 2023

Daniel Bersohn

Bib: 4661•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 19%
Division (M18-39)
#0 / 5285
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:38/mi
20:38
↑ 97↓ 3451.5%
10K· 6.21 mi
6:40/mi
41:22
↑ 79↓ 1380.4%
15K· 9.32 mi
6:43/mi
1:02:15
↑ 67↓ 78
20K· 12.43 mi
6:44/mi
1:23:10
↑ 106↓ 860.1%
Half· 13.11 mi
6:25/mi
1:27:33
↑ 19↓ 370.5%
25K· 15.53 mi
6:36/mi
1:43:32
↑ 66↓ 880.2%
30K· 18.64 mi
6:48/mi
2:04:40
↑ 181↓ 1480.2%
20M
6:46/mi
2:13:52
↑ 64↓ 500.2%
21M
7:20/mi
2:21:12
↑ 106↓ 241.6%
35K· 21.75 mi
6:28/mi
2:26:02
↑ 17↓ 861.7%
23M
6:55/mi
2:34:41
↑ 23↓ 630.6%
24M
6:39/mi
2:41:20
↓ 821.3%
40K· 24.85 mi
6:52/mi
2:47:12
↓ 200.3%
25.2M
7:29/mi
2:49:47
↑ 13↓ 160.2%
Finish· 26.22 mi
6:37/mi
2:56:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:33
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:28:59
Pace6:47 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4420:386:3820:38
6:38
-
10K
6.21 mi10:43:2841:226:3920:44
6:40
+0:02
15K
9.32 mi11:04:211:02:156:4120:53
6:43
+0:03
20K
12.43 mi11:25:161:23:106:4220:55
6:44
+0:01
Half
13.11 mi11:29:391:27:336:414:23
6:25
-0:19
25K
15.53 mi11:45:381:43:326:4015:59
6:36
+0:11
30K
18.64 mi12:06:462:04:406:4121:08
6:48
+0:12
20M
20.00 mi12:15:582:13:526:429:12
6:46
-0:02
21M
21.00 mi12:23:182:21:126:437:20
7:20
+0:34
35K
21.75 mi12:28:082:26:026:434:50
6:28
-0:52
23M
23.00 mi12:36:472:34:416:448:39
6:55
+0:27
24M
24.00 mi12:43:262:41:206:436:39
6:39
-0:16
40K
24.85 mi12:49:182:47:126:445:52
6:52
+0:13
25.2M
25.20 mi12:51:532:49:476:442:35
7:29
+0:37
Finish
26.22 mi12:58:382:56:326:446:45
6:37
-0:52

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

6:25 /mi

Average Pace

6:44 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:37

94% of race

Time at Steady Pace

9:55

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:22:4420:386:3820:38
6:38
#3170
10K
6.21 mi10:43:2841:226:3920:44
6:40
#3583
15K
9.32 mi11:04:211:02:156:4120:53
6:43
#3794
20K
12.43 mi11:25:161:23:106:4220:55
6:44
#3788
Half
13.11 mi11:29:391:27:336:414:23
6:25
#3686
25K
15.53 mi11:45:381:43:326:4015:59
6:36
#3468
30K
18.64 mi12:06:462:04:406:4121:08
6:48
#3348
20M
20.00 mi12:15:582:13:526:429:12
6:46
#3237
21M
21.00 mi12:23:182:21:126:437:20
7:20
#3255
35K
21.75 mi12:28:082:26:026:434:50
6:28
#3192
23M
23.00 mi12:36:472:34:416:448:39
6:55
#3168
24M
24.00 mi12:43:262:41:206:436:39
6:39
#3129
40K
24.85 mi12:49:182:47:126:445:52
6:52
#3099
25.2M
25.20 mi12:51:532:49:476:442:35
7:29
#3092
Finish
26.22 mi12:58:382:56:326:446:45
6:37
#3070
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3170299829984317(Top 16%)4042(Top 27%)4042(Top 76%)
10K6.21 mi3.10 mi3583-4133381-3833381-3834070(Top 15%)3821(Top 25%)3821(Top 72%)
15K9.32 mi3.11 mi3794-2113578-1973578-1974317(Top 16%)4042(Top 27%)4042(Top 76%)
20K12.43 mi3.11 mi3788+6357835783804(Top 14%)3586(Top 24%)3586(Top 68%)
Half13.11 mi0.68 mi3686+1023486+923486+922383(Top 9%)2288(Top 15%)2288(Top 43%)
25K15.53 mi2.42 mi3468+2183292+1943292+1942670(Top 10%)2556(Top 17%)2556(Top 48%)
30K18.64 mi3.11 mi3348+1203176+1163176+1162999(Top 11%)2837(Top 19%)2837(Top 54%)
20M20.00 mi1.36 mi3237+1113074+1023074+1022649(Top 10%)2506(Top 17%)2506(Top 47%)
21M21.00 mi1.00 mi3255-183084-103084-103760(Top 14%)3483(Top 23%)3483(Top 66%)
35K21.75 mi0.75 mi3192+633025+593025+592258(Top 8%)2145(Top 14%)2145(Top 41%)
23M23.00 mi1.25 mi3168+243006+193006+193266(Top 12%)3035(Top 20%)3035(Top 57%)
24M24.00 mi1.00 mi3129+392967+392967+392826(Top 11%)2627(Top 17%)2627(Top 50%)
40K24.85 mi0.85 mi3099+302936+312936+313098(Top 12%)2842(Top 19%)2842(Top 54%)
25.2M25.20 mi0.35 mi3092+72929+72929+73795(Top 14%)3385(Top 22%)3385(Top 64%)
Finish26.22 mi1.02 mi3070+222907+222907+223091(Top 12%)2786(Top 18%)2786(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4317

Males

4042

M18-39

4042

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

4070

Males

3821

M18-39

3821

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4317

Males

4042

M18-39

4042

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3804

Males

3586

M18-39

3586

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2383

Males

2288

M18-39

2288

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2670

Males

2556

M18-39

2556

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2999

Males

2837

M18-39

2837

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2649

Males

2506

M18-39

2506

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3760

Males

3483

M18-39

3483

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2258

Males

2145

M18-39

2145

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3266

Males

3035

M18-39

3035

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

2826

Males

2627

M18-39

2627

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3098

Males

2842

M18-39

2842

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3795

Males

3385

M18-39

3385

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3091

Males

2786

M18-39

2786

Passing Analysis

Category:
Athletes Passed
1191
Passed By
1091
Net Change
+100
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3170
5K → 10K55468-413#3170#3583
10K → 15K51262-211#3583#3794
15K → 20K108102+6#3794#3788
20K → Half1020+102#3788#3686
Half → 25K2224+218#3686#3468
25K → 30K15434+120#3468#3348
30K → 20M12514+111#3348#3237
20M → 21M4058-18#3237#3255
21M → 35K685+63#3255#3192
35K → 23M6844+24#3192#3168
23M → 24M6122+39#3168#3129
24M → 40K5323+30#3129#3099
40K → 25.2M2114+7#3099#3092
25.2M → Finish6341+22#3092#3070
TOTALS11911091+100
📊

Passing Visuals

Category:
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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