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BOSTON MARATHON 2023

Thomas Nix

Bib: 31848•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
10:52/mi
33:45
↑ 97↓ 3451.5%
10K· 6.21 mi
11:20/mi
1:08:58
↑ 79↓ 1380.4%
15K· 9.32 mi
11:47/mi
1:45:35
↑ 67↓ 78
20K· 12.43 mi
12:45/mi
2:25:13
↑ 106↓ 860.1%
Half· 13.11 mi
12:29/mi
2:33:44
↑ 19↓ 370.5%
25K· 15.53 mi
13:22/mi
3:06:08
↑ 66↓ 880.2%
30K· 18.64 mi
13:59/mi
3:49:35
↑ 181↓ 1480.2%
20M
13:38/mi
4:08:06
↑ 64↓ 500.2%
21M
15:05/mi
4:23:11
↑ 106↓ 241.6%
35K· 21.75 mi
12:50/mi
4:32:47
↑ 17↓ 861.7%
23M
12:56/mi
4:48:59
↑ 23↓ 630.6%
24M
13:05/mi
5:02:04
↓ 821.3%
40K· 24.85 mi
15:12/mi
5:15:04
↓ 200.3%
25.2M
13:29/mi
5:19:43
↑ 13↓ 160.2%
Finish· 26.22 mi
11:37/mi
5:31:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:33:44
Pace11:44 /mi
2nd Half
Distance13.11 mi
Time2:57:49
Pace13:34 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0333:4510:5233:45
10:52
-
10K
6.21 mi12:29:161:08:5811:0635:13
11:20
+0:28
15K
9.32 mi13:05:531:45:3511:2036:37
11:47
+0:27
20K
12.43 mi13:45:312:25:1311:4139:38
12:45
+0:58
Half
13.11 mi13:54:022:33:4411:448:31
12:29
-0:16
25K
15.53 mi14:26:263:06:0811:5932:24
13:22
+0:53
30K
18.64 mi15:09:533:49:3512:1943:27
13:59
+0:37
20M
20.00 mi15:28:244:08:0612:2418:31
13:38
-0:21
21M
21.00 mi15:43:294:23:1112:3215:05
15:05
+1:27
35K
21.75 mi15:53:054:32:4712:339:36
12:50
-2:15
23M
23.00 mi16:09:174:48:5912:3416:12
12:56
+0:06
24M
24.00 mi16:22:225:02:0412:3513:05
13:05
+0:09
40K
24.85 mi16:35:225:15:0412:4113:00
15:12
+2:07
25.2M
25.20 mi16:40:015:19:4312:414:39
13:29
-1:43
Finish
26.22 mi16:51:515:31:3312:3911:50
11:37
-1:52

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

10:52 /mi

Average Pace

12:39 /mi

Slowest Pace

15:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:25

35% of race

Time at Steady Pace

2:04:05

37% of race

Time at Slower Pace

1:30:03

27% of race

Average Pace: 12:39 /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 mi11:54:0333:4510:5233:45
10:52
#25475
10K
6.21 mi12:29:161:08:5811:0635:13
11:20
#25729
15K
9.32 mi13:05:531:45:3511:2036:37
11:47
#25821
20K
12.43 mi13:45:312:25:1311:4139:38
12:45
#25945
Half
13.11 mi13:54:022:33:4411:448:31
12:29
#25951
25K
15.53 mi14:26:263:06:0811:5932:24
13:22
#25993
30K
18.64 mi15:09:533:49:3512:1943:27
13:59
#26027
20M
20.00 mi15:28:244:08:0612:2418:31
13:38
#26002
21M
21.00 mi15:43:294:23:1112:3215:05
15:05
#25997
35K
21.75 mi15:53:054:32:4712:339:36
12:50
#25980
23M
23.00 mi16:09:174:48:5912:3416:12
12:56
#25942
24M
24.00 mi16:22:225:02:0412:3513:05
13:05
#25942
40K
24.85 mi16:35:225:15:0412:4113:00
15:12
#25969
25.2M
25.20 mi16:40:015:19:4312:414:39
13:29
#25956
Finish
26.22 mi16:51:515:31:3312:3911:50
11:37
#25937
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25475147431474325912(Top 97%)14903(Top 98%)14903(Top 282%)
10K6.21 mi3.10 mi25729-25414828-8514828-8525829(Top 97%)14876(Top 98%)14876(Top 281%)
15K9.32 mi3.11 mi25821-9214873-4514873-4525912(Top 97%)14903(Top 98%)14903(Top 282%)
20K12.43 mi3.11 mi25945-12414921-4814921-4826116(Top 98%)14969(Top 99%)14969(Top 283%)
Half13.11 mi0.68 mi25951-614924-314924-326143(Top 98%)14974(Top 99%)14974(Top 283%)
25K15.53 mi2.42 mi25993-4214928-414928-426067(Top 98%)14931(Top 98%)14931(Top 283%)
30K18.64 mi3.11 mi26027-3414936-814936-826025(Top 98%)14891(Top 98%)14891(Top 282%)
20M20.00 mi1.36 mi26002+2514924+1214924+1225620(Top 96%)14682(Top 97%)14682(Top 278%)
21M21.00 mi1.00 mi25997+514921+314921+325774(Top 97%)14759(Top 97%)14759(Top 279%)
35K21.75 mi0.75 mi25980+1714909+1214909+1225442(Top 96%)14537(Top 96%)14537(Top 275%)
23M23.00 mi1.25 mi25942+3814888+2114888+2125028(Top 94%)14355(Top 95%)14355(Top 272%)
24M24.00 mi1.00 mi2594214887+114887+125536(Top 96%)14568(Top 96%)14568(Top 276%)
40K24.85 mi0.85 mi25969-2714897-1014897-1026230(Top 99%)14931(Top 98%)14931(Top 283%)
25.2M25.20 mi0.35 mi25956+1314891+614891+624502(Top 92%)14047(Top 93%)14047(Top 266%)
Finish26.22 mi1.02 mi25937+1914881+1014881+1024826(Top 93%)14232(Top 94%)14232(Top 269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25912

Males

14903

M18-39

14903

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25829

Males

14876

M18-39

14876

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25912

Males

14903

M18-39

14903

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26116

Males

14969

M18-39

14969

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26143

Males

14974

M18-39

14974

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26067

Males

14931

M18-39

14931

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26025

Males

14891

M18-39

14891

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25620

Males

14682

M18-39

14682

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25774

Males

14759

M18-39

14759

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25442

Males

14537

M18-39

14537

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25028

Males

14355

M18-39

14355

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25536

Males

14568

M18-39

14568

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26230

Males

14931

M18-39

14931

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24502

Males

14047

M18-39

14047

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24826

Males

14232

M18-39

14232

Passing Analysis

Category:
Athletes Passed
368
Passed By
830
Net Change
-462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25475
5K → 10K59313-254#25475#25729
10K → 15K50142-92#25729#25821
15K → 20K21145-124#25821#25945
20K → Half915-6#25945#25951
Half → 25K2466-42#25951#25993
25K → 30K3771-34#25993#26027
30K → 20M3510+25#26027#26002
20M → 21M1914+5#26002#25997
21M → 35K236+17#25997#25980
35K → 23M413+38#25980#25942
23M → 24M10100#25942#25942
24M → 40K532-27#25942#25969
40K → 25.2M141+13#25969#25956
25.2M → Finish212+19#25956#25937
TOTALS368830-462
📊

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