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BOSTON MARATHON 2023

Adam Horn

Bib: 4198•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:11
Rank: #2254
Start → 5K
20:11 | 6:30/mi
10K· 6.21 mi
39:46
Rank: #1983 (+271)
5K → 10K
19:35 | 6:18/mi
15K· 9.32 mi
59:14
Rank: #1814 (+169)
10K → 15K
19:28 | 6:16/mi
20K· 12.43 mi
1:18:40
Rank: #1663 (+151)
15K → 20K
19:26 | 6:15/mi
Half· 13.11 mi
1:22:57
Rank: #1662 (+1)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:38:25
Rank: #1639 (+23)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
1:59:21
Rank: #1743 (-104)
25K → 30K
20:56 | 6:44/mi
20M
2:09:35
Rank: #2039 (-296)
30K → 20M
10:14 | 7:32/mi
21M
2:17:50
Rank: #2311 (-272)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:23:07
Rank: #2386 (-75)
21M → 35K
5:17 | 7:04/mi
23M
2:32:47
Rank: #2603 (-217)
35K → 23M
9:40 | 7:43/mi
24M
2:39:38
Rank: #2644 (-41)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:45:46
Rank: #2716 (-72)
24M → 40K
6:08 | 7:10/mi
25.2M
2:48:32
Rank: #2767 (-51)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:55:54
Rank: #2903 (-136)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:57
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:32:57
Pace7:05 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5920:116:3020:11
6:30
-
10K
6.21 mi10:41:3439:466:2419:35
6:18
-0:12
15K
9.32 mi11:01:0259:146:2119:28
6:16
-0:02
20K
12.43 mi11:20:281:18:406:2019:26
6:15
-0:01
Half
13.11 mi11:24:451:22:576:204:17
6:17
+0:02
25K
15.53 mi11:40:131:38:256:2015:28
6:23
+0:06
30K
18.64 mi12:01:091:59:216:2420:56
6:44
+0:21
20M
20.00 mi12:11:232:09:356:2910:14
7:32
+0:48
21M
21.00 mi12:19:382:17:506:348:15
8:15
+0:43
35K
21.75 mi12:24:552:23:076:355:17
7:04
-1:11
23M
23.00 mi12:34:352:32:476:399:40
7:43
+0:39
24M
24.00 mi12:41:262:39:386:396:51
6:51
-0:52
40K
24.85 mi12:47:342:45:466:406:08
7:10
+0:19
25.2M
25.20 mi12:50:202:48:326:412:46
8:01
+0:51
Finish
26.22 mi12:57:422:55:546:437:22
7:14
-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

6:15 /mi

Average Pace

6:43 /mi

Slowest Pace

8:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:25

56% of race

Time at Steady Pace

39:12

22% of race

Time at Slower Pace

38:17

22% of race

Average Pace: 6:43 /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 mi10:21:5920:116:3020:11
6:30
#2254
10K
6.21 mi10:41:3439:466:2419:35
6:18
#1983
15K
9.32 mi11:01:0259:146:2119:28
6:16
#1814
20K
12.43 mi11:20:281:18:406:2019:26
6:15
#1663
Half
13.11 mi11:24:451:22:576:204:17
6:17
#1662
25K
15.53 mi11:40:131:38:256:2015:28
6:23
#1639
30K
18.64 mi12:01:091:59:216:2420:56
6:44
#1743
20M
20.00 mi12:11:232:09:356:2910:14
7:32
#2039
21M
21.00 mi12:19:382:17:506:348:15
8:15
#2311
35K
21.75 mi12:24:552:23:076:355:17
7:04
#2386
23M
23.00 mi12:34:352:32:476:399:40
7:43
#2603
24M
24.00 mi12:41:262:39:386:396:51
6:51
#2644
40K
24.85 mi12:47:342:45:466:406:08
7:10
#2716
25.2M
25.20 mi12:50:202:48:326:412:46
8:01
#2767
Finish
26.22 mi12:57:422:55:546:437:22
7:14
#2903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2254215221521505(Top 6%)1437(Top 9%)1437(Top 27%)
10K6.21 mi3.10 mi1983+2711900+2521900+2521796(Top 7%)1718(Top 11%)1718(Top 33%)
15K9.32 mi3.11 mi1814+1691735+1651735+1651505(Top 6%)1437(Top 9%)1437(Top 27%)
20K12.43 mi3.11 mi1663+1511592+1431592+1431242(Top 5%)1189(Top 8%)1189(Top 22%)
Half13.11 mi0.68 mi1662+11590+21590+21735(Top 7%)1665(Top 11%)1665(Top 32%)
25K15.53 mi2.42 mi1639+231569+211569+211651(Top 6%)1581(Top 10%)1581(Top 30%)
30K18.64 mi3.11 mi1743-1041667-981667-982612(Top 10%)2483(Top 16%)2483(Top 47%)
20M20.00 mi1.36 mi2039-2961954-2871954-2876955(Top 26%)5933(Top 39%)5933(Top 112%)
21M21.00 mi1.00 mi2311-2722214-2602214-2608853(Top 33%)6967(Top 46%)6967(Top 132%)
35K21.75 mi0.75 mi2386-752285-712285-715621(Top 21%)4952(Top 33%)4952(Top 94%)
23M23.00 mi1.25 mi2603-2172489-2042489-2047820(Top 29%)6304(Top 42%)6304(Top 119%)
24M24.00 mi1.00 mi2644-412524-352524-353904(Top 15%)3563(Top 23%)3563(Top 67%)
40K24.85 mi0.85 mi2716-722588-642588-644704(Top 18%)4131(Top 27%)4131(Top 78%)
25.2M25.20 mi0.35 mi2767-512629-412629-416509(Top 24%)5235(Top 34%)5235(Top 99%)
Finish26.22 mi1.02 mi2903-1362751-1222751-1226584(Top 25%)5295(Top 35%)5295(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1505

Males

1437

M18-39

1437

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1796

Males

1718

M18-39

1718

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1505

Males

1437

M18-39

1437

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1242

Males

1189

M18-39

1189

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1735

Males

1665

M18-39

1665

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1651

Males

1581

M18-39

1581

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2612

Males

2483

M18-39

2483

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

6955

Males

5933

M18-39

5933

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8853

Males

6967

M18-39

6967

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5621

Males

4952

M18-39

4952

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7820

Males

6304

M18-39

6304

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3904

Males

3563

M18-39

3563

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4704

Males

4131

M18-39

4131

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6509

Males

5235

M18-39

5235

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6584

Males

5295

M18-39

5295

Passing Analysis

Category:
Athletes Passed
796
Passed By
1445
Net Change
-649
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2254
5K → 10K29221+271#2254#1983
10K → 15K1778+169#1983#1814
15K → 20K1543+151#1814#1663
20K → Half1211+1#1663#1662
Half → 25K5027+23#1662#1639
25K → 30K25129-104#1639#1743
30K → 20M4300-296#1743#2039
20M → 21M1273-272#2039#2311
21M → 35K1287-75#2311#2386
35K → 23M7224-217#2386#2603
23M → 24M3071-41#2603#2644
24M → 40K1688-72#2644#2716
40K → 25.2M354-51#2716#2767
25.2M → Finish13149-136#2767#2903
TOTALS7961445-649
📊

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