Boston Marathon logo
BOSTON MARATHON 2023

Nick Nadeau

Bib: 8337•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
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
23:46
Rank: #11015
Start → 5K
23:46 | 7:39/mi
10K· 6.21 mi
48:07
Rank: #12210 (-1195)
5K → 10K
24:21 | 7:50/mi
15K· 9.32 mi
1:12:36
Rank: #12570 (-360)
10K → 15K
24:29 | 7:53/mi
20K· 12.43 mi
1:37:29
Rank: #12798 (-228)
15K → 20K
24:53 | 8:01/mi
Half· 13.11 mi
1:42:50
Rank: #12804 (-6)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
2:02:30
Rank: #12923 (-119)
Half → 25K
19:40 | 8:07/mi
30K· 18.64 mi
2:28:50
Rank: #13169 (-246)
25K → 30K
26:20 | 8:29/mi
20M
2:40:31
Rank: #13245 (-76)
30K → 20M
11:41 | 8:36/mi
21M
2:49:45
Rank: #13325 (-80)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
2:56:03
Rank: #13364 (-39)
21M → 35K
6:18 | 8:25/mi
23M
3:07:04
Rank: #13468 (-104)
35K → 23M
11:01 | 8:48/mi
24M
3:15:35
Rank: #13493 (-25)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:22:53
Rank: #13470 (+23)
24M → 40K
7:18 | 8:32/mi
25.2M
3:26:02
Rank: #13457 (+13)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:34:09
Rank: #13383 (+74)
25.2M → Finish
8:07 | 7:58/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:50
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:51:19
Pace8:29 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1423:467:3923:46
7:39
-
10K
6.21 mi11:13:3548:077:4524:21
7:50
+0:11
15K
9.32 mi11:38:041:12:367:4724:29
7:53
+0:03
20K
12.43 mi12:02:571:37:297:5124:53
8:01
+0:08
Half
13.11 mi12:08:181:42:507:515:21
7:50
-0:11
25K
15.53 mi12:27:582:02:307:5319:40
8:07
+0:17
30K
18.64 mi12:54:182:28:507:5926:20
8:29
+0:22
20M
20.00 mi13:05:592:40:318:0211:41
8:36
+0:07
21M
21.00 mi13:15:132:49:458:059:14
9:14
+0:38
35K
21.75 mi13:21:312:56:038:066:18
8:25
-0:49
23M
23.00 mi13:32:323:07:048:0811:01
8:48
+0:23
24M
24.00 mi13:41:033:15:358:098:31
8:31
-0:17
40K
24.85 mi13:48:213:22:538:107:18
8:32
+0:01
25.2M
25.20 mi13:51:303:26:028:113:09
9:08
+0:36
Finish
26.22 mi13:59:373:34:098:108:07
7:58
-1:10

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

7:39 /mi

Average Pace

8:10 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:37

61% of race

Time at Steady Pace

1:00:08

28% of race

Time at Slower Pace

23:24

11% of race

Average Pace: 8:10 /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 mi10:49:1423:467:3923:46
7:39
#11015
10K
6.21 mi11:13:3548:077:4524:21
7:50
#12210
15K
9.32 mi11:38:041:12:367:4724:29
7:53
#12570
20K
12.43 mi12:02:571:37:297:5124:53
8:01
#12798
Half
13.11 mi12:08:181:42:507:515:21
7:50
#12804
25K
15.53 mi12:27:582:02:307:5319:40
8:07
#12923
30K
18.64 mi12:54:182:28:507:5926:20
8:29
#13169
20M
20.00 mi13:05:592:40:318:0211:41
8:36
#13245
21M
21.00 mi13:15:132:49:458:059:14
9:14
#13325
35K
21.75 mi13:21:312:56:038:066:18
8:25
#13364
23M
23.00 mi13:32:323:07:048:0811:01
8:48
#13468
24M
24.00 mi13:41:033:15:358:098:31
8:31
#13493
40K
24.85 mi13:48:213:22:538:107:18
8:32
#13470
25.2M
25.20 mi13:51:303:26:028:113:09
9:08
#13457
Finish
26.22 mi13:59:373:34:098:108:07
7:58
#13383
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi110158670867013348(Top 50%)9640(Top 64%)9640(Top 182%)
10K6.21 mi3.10 mi12210-11959214-5449214-54413443(Top 50%)9742(Top 64%)9742(Top 184%)
15K9.32 mi3.11 mi12570-3609340-1269340-12613348(Top 50%)9640(Top 64%)9640(Top 182%)
20K12.43 mi3.11 mi12798-2289418-789418-7813504(Top 51%)9668(Top 64%)9668(Top 183%)
Half13.11 mi0.68 mi12804-69422-49422-413063(Top 49%)9520(Top 63%)9520(Top 180%)
25K15.53 mi2.42 mi12923-1199444-229444-2213572(Top 51%)9591(Top 63%)9591(Top 181%)
30K18.64 mi3.11 mi13169-2469506-629506-6214138(Top 53%)9702(Top 64%)9702(Top 184%)
20M20.00 mi1.36 mi13245-769525-199525-1914220(Top 53%)9650(Top 64%)9650(Top 183%)
21M21.00 mi1.00 mi13325-809543-189543-1814627(Top 55%)9771(Top 64%)9771(Top 185%)
35K21.75 mi0.75 mi13364-399538+59538+514805(Top 56%)9785(Top 64%)9785(Top 185%)
23M23.00 mi1.25 mi13468-1049552-149552-1414964(Top 56%)9792(Top 65%)9792(Top 185%)
24M24.00 mi1.00 mi13493-259541+119541+1114549(Top 55%)9546(Top 63%)9546(Top 181%)
40K24.85 mi0.85 mi13470+239511+309511+3013564(Top 51%)9040(Top 60%)9040(Top 171%)
25.2M25.20 mi0.35 mi13457+139490+219490+2113226(Top 50%)8867(Top 58%)8867(Top 168%)
Finish26.22 mi1.02 mi13383+749443+479443+4711846(Top 44%)8208(Top 54%)8208(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13348

Males

9640

M18-39

9640

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13443

Males

9742

M18-39

9742

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13348

Males

9640

M18-39

9640

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13504

Males

9668

M18-39

9668

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13063

Males

9520

M18-39

9520

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13572

Males

9591

M18-39

9591

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14138

Males

9702

M18-39

9702

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14220

Males

9650

M18-39

9650

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14627

Males

9771

M18-39

9771

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14805

Males

9785

M18-39

9785

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14964

Males

9792

M18-39

9792

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14549

Males

9546

M18-39

9546

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13564

Males

9040

M18-39

9040

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13226

Males

8867

M18-39

8867

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11846

Males

8208

M18-39

8208

Passing Analysis

Category:
Athletes Passed
1019
Passed By
3387
Net Change
-2368
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11015
5K → 10K421237-1195#11015#12210
10K → 15K88448-360#12210#12570
15K → 20K116344-228#12570#12798
20K → Half3238-6#12798#12804
Half → 25K106225-119#12804#12923
25K → 30K117363-246#12923#13169
30K → 20M66142-76#13169#13245
20M → 21M58138-80#13245#13325
21M → 35K4079-39#13325#13364
35K → 23M66170-104#13364#13468
23M → 24M6792-25#13468#13493
24M → 40K6946+23#13493#13470
40K → 25.2M4027+13#13470#13457
25.2M → Finish11238+74#13457#13383
TOTALS10193387-2368
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing