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BOSTON MARATHON 2023

C Adam Pfander

Bib: 2923•M

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #2775
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
40:50
Rank: #2950 (-175)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:00:43
Rank: #2612 (+338)
10K → 15K
19:53 | 6:24/mi
20K· 12.43 mi
1:20:46
Rank: #2448 (+164)
15K → 20K
20:03 | 6:27/mi
Half· 13.11 mi
1:25:10
Rank: #2446 (+2)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:41:09
Rank: #2477 (-31)
Half → 25K
15:59 | 6:36/mi
30K· 18.64 mi
2:01:57
Rank: #2431 (+46)
25K → 30K
20:48 | 6:42/mi
20M
2:11:02
Rank: #2389 (+42)
30K → 20M
9:05 | 6:41/mi
21M
2:18:07
Rank: #2376 (+13)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:23:04
Rank: #2370 (+6)
21M → 35K
4:57 | 6:37/mi
23M
2:31:49
Rank: #2404 (-34)
35K → 23M
8:45 | 6:59/mi
24M
2:38:44
Rank: #2438 (-34)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:45:02
Rank: #2536 (-98)
24M → 40K
6:18 | 7:22/mi
25.2M
2:47:43
Rank: #2575 (-39)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:54:49
Rank: #2656 (-81)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:10
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:29:39
Pace6:50 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0720:286:3520:28
6:35
-
10K
6.21 mi10:41:2940:506:3420:22
6:33
-0:02
15K
9.32 mi11:01:221:00:436:3119:53
6:24
-0:09
20K
12.43 mi11:21:251:20:466:3020:03
6:27
+0:03
Half
13.11 mi11:25:491:25:106:304:24
6:27
0:00
25K
15.53 mi11:41:481:41:096:3115:59
6:36
+0:09
30K
18.64 mi12:02:362:01:576:3320:48
6:42
+0:06
20M
20.00 mi12:11:412:11:026:339:05
6:41
-0:01
21M
21.00 mi12:18:462:18:076:357:05
7:05
+0:24
35K
21.75 mi12:23:432:23:046:354:57
6:37
-0:28
23M
23.00 mi12:32:282:31:496:368:45
6:59
+0:22
24M
24.00 mi12:39:232:38:446:376:55
6:55
-0:04
40K
24.85 mi12:45:412:45:026:386:18
7:22
+0:27
25.2M
25.20 mi12:48:222:47:436:392:41
7:47
+0:25
Finish
26.22 mi12:55:282:54:496:407:06
6:58
-0:49

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

6:24 /mi

Average Pace

6:40 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:20

25% of race

Time at Steady Pace

1:31:39

52% of race

Time at Slower Pace

38:50

22% of race

Average Pace: 6:40 /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 mi10:21:0720:286:3520:28
6:35
#2775
10K
6.21 mi10:41:2940:506:3420:22
6:33
#2950
15K
9.32 mi11:01:221:00:436:3119:53
6:24
#2612
20K
12.43 mi11:21:251:20:466:3020:03
6:27
#2448
Half
13.11 mi11:25:491:25:106:304:24
6:27
#2446
25K
15.53 mi11:41:481:41:096:3115:59
6:36
#2477
30K
18.64 mi12:02:362:01:576:3320:48
6:42
#2431
20M
20.00 mi12:11:412:11:026:339:05
6:41
#2389
21M
21.00 mi12:18:462:18:076:357:05
7:05
#2376
35K
21.75 mi12:23:432:23:046:354:57
6:37
#2370
23M
23.00 mi12:32:282:31:496:368:45
6:59
#2404
24M
24.00 mi12:39:232:38:446:376:55
6:55
#2438
40K
24.85 mi12:45:412:45:026:386:18
7:22
#2536
25.2M
25.20 mi12:48:222:47:436:392:41
7:47
#2575
Finish
26.22 mi12:55:282:54:496:407:06
6:58
#2656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2775264026402103(Top 8%)2018(Top 13%)2018(Top 38%)
10K6.21 mi3.10 mi2950-1752814-1742814-1743157(Top 12%)3009(Top 20%)3009(Top 57%)
15K9.32 mi3.11 mi2612+3382493+3212493+3212103(Top 8%)2018(Top 13%)2018(Top 38%)
20K12.43 mi3.11 mi2448+1642345+1482345+1482064(Top 8%)1983(Top 13%)1983(Top 38%)
Half13.11 mi0.68 mi2446+22344+12344+12505(Top 9%)2404(Top 16%)2404(Top 45%)
25K15.53 mi2.42 mi2477-312373-292373-292664(Top 10%)2550(Top 17%)2550(Top 48%)
30K18.64 mi3.11 mi2431+462328+452328+452381(Top 9%)2267(Top 15%)2267(Top 43%)
20M20.00 mi1.36 mi2389+422288+402288+402216(Top 8%)2108(Top 14%)2108(Top 40%)
21M21.00 mi1.00 mi2376+132277+112277+112543(Top 10%)2401(Top 16%)2401(Top 45%)
35K21.75 mi0.75 mi2370+62270+72270+73054(Top 11%)2856(Top 19%)2856(Top 54%)
23M23.00 mi1.25 mi2404-342301-312301-313699(Top 14%)3413(Top 22%)3413(Top 65%)
24M24.00 mi1.00 mi2438-342332-312332-314227(Top 16%)3839(Top 25%)3839(Top 73%)
40K24.85 mi0.85 mi2536-982421-892421-895825(Top 22%)4891(Top 32%)4891(Top 93%)
25.2M25.20 mi0.35 mi2575-392458-372458-375193(Top 20%)4373(Top 29%)4373(Top 83%)
Finish26.22 mi1.02 mi2656-812532-742532-744978(Top 19%)4249(Top 28%)4249(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2103

Males

2018

M18-39

2018

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3157

Males

3009

M18-39

3009

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2103

Males

2018

M18-39

2018

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2064

Males

1983

M18-39

1983

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2505

Males

2404

M18-39

2404

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2664

Males

2550

M18-39

2550

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2381

Males

2267

M18-39

2267

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2216

Males

2108

M18-39

2108

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2543

Males

2401

M18-39

2401

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3054

Males

2856

M18-39

2856

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3699

Males

3413

M18-39

3413

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4227

Males

3839

M18-39

3839

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5825

Males

4891

M18-39

4891

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5193

Males

4373

M18-39

4373

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

4978

Males

4249

M18-39

4249

Passing Analysis

Category:
Athletes Passed
938
Passed By
819
Net Change
+119
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2775
5K → 10K91266-175#2775#2950
10K → 15K3446+338#2950#2612
15K → 20K1739+164#2612#2448
20K → Half1311+2#2448#2446
Half → 25K3768-31#2446#2477
25K → 30K8943+46#2477#2431
30K → 20M5715+42#2431#2389
20M → 21M3724+13#2389#2376
21M → 35K2721+6#2376#2370
35K → 23M2862-34#2370#2404
23M → 24M1246-34#2404#2438
24M → 40K10108-98#2438#2536
40K → 25.2M645-39#2536#2575
25.2M → Finish1495-81#2575#2656
TOTALS938819+119
📊

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