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BOSTON MARATHON 2023

Christopher Ashland

Bib: 3751•M

MT

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

Start
0:00:00
Race begins
5K· 3.11 mi
20:53
Rank: #3851
Start → 5K
20:53 | 6:43/mi
10K· 6.21 mi
42:39
Rank: #5514 (-1663)
5K → 10K
21:46 | 7:00/mi
15K· 9.32 mi
1:04:11
Rank: #5742 (-228)
10K → 15K
21:32 | 6:56/mi
20K· 12.43 mi
1:25:28
Rank: #5533 (+209)
15K → 20K
21:17 | 6:51/mi
Half· 13.11 mi
1:30:01
Rank: #5481 (+52)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:46:10
Rank: #5031 (+450)
Half → 25K
16:09 | 6:40/mi
30K· 18.64 mi
2:07:02
Rank: #4427 (+604)
25K → 30K
20:52 | 6:43/mi
20M
2:15:58
Rank: #4137 (+290)
30K → 20M
8:56 | 6:34/mi
21M
2:22:48
Rank: #3860 (+277)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:27:32
Rank: #3720 (+140)
21M → 35K
4:44 | 6:20/mi
23M
2:35:56
Rank: #3563 (+157)
35K → 23M
8:24 | 6:43/mi
24M
2:42:20
Rank: #3432 (+131)
23M → 24M
6:24 | 6:24/mi
40K· 24.85 mi
2:47:55
Rank: #3312 (+120)
24M → 40K
5:35 | 6:32/mi
25.2M
2:50:18
Rank: #3252 (+60)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:56:33
Rank: #3074 (+178)
25.2M → Finish
6:15 | 6:08/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:30:01
Pace6:52 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:26:32
Pace6:36 /mi
📊Negative Split: 3.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3520:536:4320:53
6:43
-
10K
6.21 mi10:44:2142:396:5221:46
7:00
+0:17
15K
9.32 mi11:05:531:04:116:5321:32
6:56
-0:04
20K
12.43 mi11:27:101:25:286:5321:17
6:51
-0:05
Half
13.11 mi11:31:431:30:016:524:33
6:40
-0:11
25K
15.53 mi11:47:521:46:106:5016:09
6:40
0:00
30K
18.64 mi12:08:442:07:026:4920:52
6:43
+0:03
20M
20.00 mi12:17:402:15:586:488:56
6:34
-0:09
21M
21.00 mi12:24:302:22:486:486:50
6:50
+0:16
35K
21.75 mi12:29:142:27:326:474:44
6:20
-0:30
23M
23.00 mi12:37:382:35:566:478:24
6:43
+0:23
24M
24.00 mi12:44:022:42:206:466:24
6:24
-0:19
40K
24.85 mi12:49:372:47:556:455:35
6:32
+0:08
25.2M
25.20 mi12:52:002:50:186:452:23
6:55
+0:23
Finish
26.22 mi12:58:152:56:336:446:15
6:08
-0:47

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

6:08 /mi

Average Pace

6:44 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:45

58% of race

Time at Steady Pace

1:13:48

42% 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 mi10:22:3520:536:4320:53
6:43
#3851
10K
6.21 mi10:44:2142:396:5221:46
7:00
#5514
15K
9.32 mi11:05:531:04:116:5321:32
6:56
#5742
20K
12.43 mi11:27:101:25:286:5321:17
6:51
#5533
Half
13.11 mi11:31:431:30:016:524:33
6:40
#5481
25K
15.53 mi11:47:521:46:106:5016:09
6:40
#5031
30K
18.64 mi12:08:442:07:026:4920:52
6:43
#4427
20M
20.00 mi12:17:402:15:586:488:56
6:34
#4137
21M
21.00 mi12:24:302:22:486:486:50
6:50
#3860
35K
21.75 mi12:29:142:27:326:474:44
6:20
#3720
23M
23.00 mi12:37:382:35:566:478:24
6:43
#3563
24M
24.00 mi12:44:022:42:206:466:24
6:24
#3432
40K
24.85 mi12:49:372:47:556:455:35
6:32
#3312
25.2M
25.20 mi12:52:002:50:186:452:23
6:55
#3252
Finish
26.22 mi12:58:152:56:336:446:15
6:08
#3074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3851361736176131(Top 23%)5558(Top 37%)5558(Top 105%)
10K6.21 mi3.10 mi5514-16635085-14685085-14686832(Top 26%)6107(Top 40%)6107(Top 116%)
15K9.32 mi3.11 mi5742-2285271-1865271-1866131(Top 23%)5558(Top 37%)5558(Top 105%)
20K12.43 mi3.11 mi5533+2095102+1695102+1694893(Top 18%)4542(Top 30%)4542(Top 86%)
Half13.11 mi0.68 mi5481+525059+435059+433968(Top 15%)3720(Top 25%)3720(Top 70%)
25K15.53 mi2.42 mi5031+4504670+3894670+3893073(Top 12%)2930(Top 19%)2930(Top 55%)
30K18.64 mi3.11 mi4427+6044135+5354135+5352494(Top 9%)2373(Top 16%)2373(Top 45%)
20M20.00 mi1.36 mi4137+2903882+2533882+2531761(Top 7%)1681(Top 11%)1681(Top 32%)
21M21.00 mi1.00 mi3860+2773635+2473635+2471541(Top 6%)1470(Top 10%)1470(Top 28%)
35K21.75 mi0.75 mi3720+1403508+1273508+1271693(Top 6%)1611(Top 11%)1611(Top 30%)
23M23.00 mi1.25 mi3563+1573365+1433365+1432219(Top 8%)2092(Top 14%)2092(Top 40%)
24M24.00 mi1.00 mi3432+1313243+1223243+1221696(Top 6%)1604(Top 11%)1604(Top 30%)
40K24.85 mi0.85 mi3312+1203133+1103133+1101669(Top 6%)1572(Top 10%)1572(Top 30%)
25.2M25.20 mi0.35 mi3252+603076+573076+571516(Top 6%)1433(Top 9%)1433(Top 27%)
Finish26.22 mi1.02 mi3074+1782911+1652911+1651102(Top 4%)1051(Top 7%)1051(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6131

Males

5558

M18-39

5558

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6832

Males

6107

M18-39

6107

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6131

Males

5558

M18-39

5558

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4893

Males

4542

M18-39

4542

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

3968

Males

3720

M18-39

3720

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3073

Males

2930

M18-39

2930

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2494

Males

2373

M18-39

2373

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1761

Males

1681

M18-39

1681

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1541

Males

1470

M18-39

1470

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1693

Males

1611

M18-39

1611

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2219

Males

2092

M18-39

2092

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1696

Males

1604

M18-39

1604

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1669

Males

1572

M18-39

1572

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1516

Males

1433

M18-39

1433

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1102

Males

1051

M18-39

1051

Passing Analysis

Category:
Athletes Passed
2766
Passed By
1989
Net Change
+777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3851
5K → 10K61669-1663#3851#5514
10K → 15K46274-228#5514#5742
15K → 20K23021+209#5742#5533
20K → Half553+52#5533#5481
Half → 25K4511+450#5481#5031
25K → 30K6084+604#5031#4427
30K → 20M2911+290#4427#4137
20M → 21M2792+277#4137#3860
21M → 35K1400+140#3860#3720
35K → 23M1625+157#3720#3563
23M → 24M1343+131#3563#3432
24M → 40K1244+120#3432#3312
40K → 25.2M611+60#3312#3252
25.2M → Finish1791+178#3252#3074
TOTALS27661989+777
📊

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