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BOSTON MARATHON 2023

Aj Merrill

Bib: 5990•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:04
Rank: #2066
Start → 5K
20:04 | 6:28/mi
10K· 6.21 mi
39:56
Rank: #2122 (-56)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:38
Rank: #1997 (+125)
10K → 15K
19:42 | 6:20/mi
20K· 12.43 mi
1:19:43
Rank: #2009 (-12)
15K → 20K
20:05 | 6:28/mi
Half· 13.11 mi
1:24:03
Rank: #2002 (+7)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:40:25
Rank: #2226 (-224)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:02:18
Rank: #2522 (-296)
25K → 30K
21:53 | 7:03/mi
20M
2:12:03
Rank: #2662 (-140)
30K → 20M
9:45 | 7:10/mi
21M
2:20:01
Rank: #2860 (-198)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:25:14
Rank: #2940 (-80)
21M → 35K
5:13 | 6:58/mi
23M
2:34:33
Rank: #3123 (-183)
35K → 23M
9:19 | 7:26/mi
24M
2:42:01
Rank: #3329 (-206)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
2:49:02
Rank: #3661 (-332)
24M → 40K
7:01 | 8:12/mi
25.2M
2:51:51
Rank: #3758 (-97)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:59:17
Rank: #3952 (-194)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:03
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:35:14
Pace7:16 /mi
📊Positive Split: 13.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0020:046:2820:04
6:28
-
10K
6.21 mi10:42:5239:566:2619:52
6:24
-0:04
15K
9.32 mi11:02:3459:386:2419:42
6:20
-0:04
20K
12.43 mi11:22:391:19:436:2520:05
6:28
+0:08
Half
13.11 mi11:26:591:24:036:254:20
6:21
-0:07
25K
15.53 mi11:43:211:40:256:2816:22
6:45
+0:24
30K
18.64 mi12:05:142:02:186:3421:53
7:03
+0:18
20M
20.00 mi12:14:592:12:036:369:45
7:10
+0:07
21M
21.00 mi12:22:572:20:016:407:58
7:58
+0:48
35K
21.75 mi12:28:102:25:146:415:13
6:58
-1:00
23M
23.00 mi12:37:292:34:336:439:19
7:26
+0:28
24M
24.00 mi12:44:572:42:016:457:28
7:28
+0:02
40K
24.85 mi12:51:582:49:026:487:01
8:12
+0:44
25.2M
25.20 mi12:54:472:51:516:492:49
8:10
-0:02
Finish
26.22 mi13:02:132:59:176:517:26
7:18
-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

6:20 /mi

Average Pace

6:51 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:03

47% of race

Time at Steady Pace

1:00:39

34% of race

Time at Slower Pace

34:35

19% of race

Average Pace: 6:50 /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 mi10:23:0020:046:2820:04
6:28
#2066
10K
6.21 mi10:42:5239:566:2619:52
6:24
#2122
15K
9.32 mi11:02:3459:386:2419:42
6:20
#1997
20K
12.43 mi11:22:391:19:436:2520:05
6:28
#2009
Half
13.11 mi11:26:591:24:036:254:20
6:21
#2002
25K
15.53 mi11:43:211:40:256:2816:22
6:45
#2226
30K
18.64 mi12:05:142:02:186:3421:53
7:03
#2522
20M
20.00 mi12:14:592:12:036:369:45
7:10
#2662
21M
21.00 mi12:22:572:20:016:407:58
7:58
#2860
35K
21.75 mi12:28:102:25:146:415:13
6:58
#2940
23M
23.00 mi12:37:292:34:336:439:19
7:26
#3123
24M
24.00 mi12:44:572:42:016:457:28
7:28
#3329
40K
24.85 mi12:51:582:49:026:487:01
8:12
#3661
25.2M
25.20 mi12:54:472:51:516:492:49
8:10
#3758
Finish
26.22 mi13:02:132:59:176:517:26
7:18
#3952
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2066197219721838(Top 7%)1761(Top 12%)1761(Top 33%)
10K6.21 mi3.10 mi2122-562031-592031-592224(Top 8%)2130(Top 14%)2130(Top 40%)
15K9.32 mi3.11 mi1997+1251912+1191912+1191838(Top 7%)1761(Top 12%)1761(Top 33%)
20K12.43 mi3.11 mi2009-121922-101922-102111(Top 8%)2026(Top 13%)2026(Top 38%)
Half13.11 mi0.68 mi2002+71918+41918+42039(Top 8%)1962(Top 13%)1962(Top 37%)
25K15.53 mi2.42 mi2226-2242134-2162134-2163753(Top 14%)3533(Top 23%)3533(Top 67%)
30K18.64 mi3.11 mi2522-2962413-2792413-2794616(Top 17%)4268(Top 28%)4268(Top 81%)
20M20.00 mi1.36 mi2662-1402543-1302543-1304957(Top 19%)4503(Top 30%)4503(Top 85%)
21M21.00 mi1.00 mi2860-1982733-1902733-1907091(Top 27%)5907(Top 39%)5907(Top 112%)
35K21.75 mi0.75 mi2940-802801-682801-685143(Top 19%)4594(Top 30%)4594(Top 87%)
23M23.00 mi1.25 mi3123-1832962-1612962-1616072(Top 23%)5224(Top 34%)5224(Top 99%)
24M24.00 mi1.00 mi3329-2063151-1893151-1897428(Top 28%)5953(Top 39%)5953(Top 113%)
40K24.85 mi0.85 mi3661-3323446-2953446-29511345(Top 43%)7979(Top 53%)7979(Top 151%)
25.2M25.20 mi0.35 mi3758-973532-863532-867377(Top 28%)5777(Top 38%)5777(Top 109%)
Finish26.22 mi1.02 mi3952-1943698-1663698-1667041(Top 26%)5580(Top 37%)5580(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1838

Males

1761

M18-39

1761

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2224

Males

2130

M18-39

2130

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1838

Males

1761

M18-39

1761

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2111

Males

2026

M18-39

2026

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2039

Males

1962

M18-39

1962

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3753

Males

3533

M18-39

3533

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4616

Males

4268

M18-39

4268

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4957

Males

4503

M18-39

4503

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7091

Males

5907

M18-39

5907

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5143

Males

4594

M18-39

4594

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6072

Males

5224

M18-39

5224

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7428

Males

5953

M18-39

5953

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11345

Males

7979

M18-39

7979

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7377

Males

5777

M18-39

5777

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7041

Males

5580

M18-39

5580

Passing Analysis

Category:
Athletes Passed
395
Passed By
2281
Net Change
-1886
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2066
5K → 10K88144-56#2066#2122
10K → 15K14217+125#2122#1997
15K → 20K5062-12#1997#2009
20K → Half114+7#2009#2002
Half → 25K7231-224#2002#2226
25K → 30K16312-296#2226#2522
30K → 20M12152-140#2522#2662
20M → 21M9207-198#2662#2860
21M → 35K1191-80#2860#2940
35K → 23M16199-183#2940#3123
23M → 24M12218-206#3123#3329
24M → 40K6338-332#3329#3661
40K → 25.2M4101-97#3661#3758
25.2M → Finish11205-194#3758#3952
TOTALS3952281-1886
📊

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