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BOSTON MARATHON 2023

Gregory Nation

Bib: 8696•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:27
Rank: #7658
Start → 5K
22:27 | 7:14/mi
10K· 6.21 mi
45:38
Rank: #8755 (-1097)
5K → 10K
23:11 | 7:28/mi
15K· 9.32 mi
1:10:30
Rank: #10611 (-1856)
10K → 15K
24:52 | 8:00/mi
20K· 12.43 mi
1:34:24
Rank: #10673 (-62)
15K → 20K
23:54 | 7:42/mi
Half· 13.11 mi
1:39:28
Rank: #10606 (+67)
20K → Half
5:04 | 7:26/mi
25K· 15.53 mi
1:58:11
Rank: #10549 (+57)
Half → 25K
18:43 | 7:43/mi
30K· 18.64 mi
2:23:07
Rank: #10588 (-39)
25K → 30K
24:56 | 8:02/mi
20M
2:34:13
Rank: #10638 (-50)
30K → 20M
11:06 | 8:10/mi
21M
2:42:54
Rank: #10667 (-29)
20M → 21M
8:41 | 8:41/mi
35K· 21.75 mi
2:48:42
Rank: #10624 (+43)
21M → 35K
5:48 | 7:45/mi
23M
2:59:00
Rank: #10652 (-28)
35K → 23M
10:18 | 8:14/mi
24M
3:07:04
Rank: #10700 (-48)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:14:29
Rank: #10831 (-131)
24M → 40K
7:25 | 8:40/mi
25.2M
3:17:35
Rank: #10860 (-29)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:25:55
Rank: #10943 (-83)
25.2M → Finish
8:20 | 8:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:28
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:27
Pace8:07 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2822:277:1422:27
7:14
-
10K
6.21 mi11:10:3945:387:2123:11
7:28
+0:14
15K
9.32 mi11:35:311:10:307:3424:52
8:00
+0:32
20K
12.43 mi11:59:251:34:247:3623:54
7:42
-0:18
Half
13.11 mi12:04:291:39:287:355:04
7:26
-0:16
25K
15.53 mi12:23:121:58:117:3618:43
7:43
+0:17
30K
18.64 mi12:48:082:23:077:4124:56
8:02
+0:19
20M
20.00 mi12:59:142:34:137:4311:06
8:10
+0:08
21M
21.00 mi13:07:552:42:547:458:41
8:41
+0:31
35K
21.75 mi13:13:432:48:427:455:48
7:45
-0:56
23M
23.00 mi13:24:012:59:007:4710:18
8:14
+0:29
24M
24.00 mi13:32:053:07:047:488:04
8:04
-0:10
40K
24.85 mi13:39:303:14:297:497:25
8:40
+0:36
25.2M
25.20 mi13:42:363:17:357:503:06
8:59
+0:19
Finish
26.22 mi13:50:563:25:557:528:20
8:11
-0:48

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

7:14 /mi

Average Pace

7:52 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:07

48% of race

Time at Steady Pace

1:27:36

43% of race

Time at Slower Pace

19:12

9% of race

Average Pace: 7:51 /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 mi10:47:2822:277:1422:27
7:14
#7658
10K
6.21 mi11:10:3945:387:2123:11
7:28
#8755
15K
9.32 mi11:35:311:10:307:3424:52
8:00
#10611
20K
12.43 mi11:59:251:34:247:3623:54
7:42
#10673
Half
13.11 mi12:04:291:39:287:355:04
7:26
#10606
25K
15.53 mi12:23:121:58:117:3618:43
7:43
#10549
30K
18.64 mi12:48:082:23:077:4124:56
8:02
#10588
20M
20.00 mi12:59:142:34:137:4311:06
8:10
#10638
21M
21.00 mi13:07:552:42:547:458:41
8:41
#10667
35K
21.75 mi13:13:432:48:427:455:48
7:45
#10624
23M
23.00 mi13:24:012:59:007:4710:18
8:14
#10652
24M
24.00 mi13:32:053:07:047:488:04
8:04
#10700
40K
24.85 mi13:39:303:14:297:497:25
8:40
#10831
25.2M
25.20 mi13:42:363:17:357:503:06
8:59
#10860
Finish
26.22 mi13:50:563:25:557:528:20
8:11
#10943
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi76586754675414397(Top 54%)10055(Top 66%)10055(Top 190%)
10K6.21 mi3.10 mi8755-10977439-6857439-68510158(Top 38%)8253(Top 54%)8253(Top 156%)
15K9.32 mi3.11 mi10611-18568473-10348473-103414397(Top 54%)10055(Top 66%)10055(Top 190%)
20K12.43 mi3.11 mi10673-628488-158488-1510850(Top 41%)8501(Top 56%)8501(Top 161%)
Half13.11 mi0.68 mi10606+678465+238465+239610(Top 36%)7891(Top 52%)7891(Top 149%)
25K15.53 mi2.42 mi10549+578417+488417+4810441(Top 39%)8225(Top 54%)8225(Top 156%)
30K18.64 mi3.11 mi10588-398376+418376+4111096(Top 42%)8389(Top 55%)8389(Top 159%)
20M20.00 mi1.36 mi10638-508374+28374+211446(Top 43%)8458(Top 56%)8458(Top 160%)
21M21.00 mi1.00 mi10667-298368+68368+611541(Top 43%)8360(Top 55%)8360(Top 158%)
35K21.75 mi0.75 mi10624+438322+468322+4610285(Top 39%)7778(Top 51%)7778(Top 147%)
23M23.00 mi1.25 mi10652-288306+168306+1611350(Top 43%)8151(Top 54%)8151(Top 154%)
24M24.00 mi1.00 mi10700-488307-18307-111662(Top 44%)8230(Top 54%)8230(Top 156%)
40K24.85 mi0.85 mi10831-1318347-408347-4014338(Top 54%)9380(Top 62%)9380(Top 177%)
25.2M25.20 mi0.35 mi10860-298346+18346+112381(Top 47%)8444(Top 56%)8444(Top 160%)
Finish26.22 mi1.02 mi10943-838363-178363-1713249(Top 50%)8894(Top 59%)8894(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14397

Males

10055

M18-39

10055

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10158

Males

8253

M18-39

8253

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14397

Males

10055

M18-39

10055

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10850

Males

8501

M18-39

8501

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9610

Males

7891

M18-39

7891

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10441

Males

8225

M18-39

8225

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11096

Males

8389

M18-39

8389

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11446

Males

8458

M18-39

8458

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11541

Males

8360

M18-39

8360

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

10285

Males

7778

M18-39

7778

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11350

Males

8151

M18-39

8151

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11662

Males

8230

M18-39

8230

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14338

Males

9380

M18-39

9380

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12381

Males

8444

M18-39

8444

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13249

Males

8894

M18-39

8894

Passing Analysis

Category:
Athletes Passed
969*
Passed By
4252
Net Change
-3285
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7658
5K → 10K171114-1097#7658#8755
10K → 15K81862-1856#8755#10611
15K → 20K131193-62#10611#10673
20K → Half736+67#10673#10606
Half → 25K14891+57#10606#10549
25K → 30K163202-39#10549#10588
30K → 20M66*116-50#10588#10638
20M → 21M6190-29#10638#10667
21M → 35K7330+43#10667#10624
35K → 23M75103-28#10624#10652
23M → 24M5199-48#10652#10700
24M → 40K40171-131#10700#10831
40K → 25.2M2655-29#10831#10860
25.2M → Finish37120-83#10860#10943
TOTALS969*4252-3285

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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