Boston Marathon logo
BOSTON MARATHON 2023

Matt Nettleton

Bib: 8334•M

CT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:22
Rank: #9799
Start → 5K
23:22 | 7:31/mi
10K· 6.21 mi
46:38
Rank: #10073 (-274)
5K → 10K
23:16 | 7:29/mi
15K· 9.32 mi
1:11:21
Rank: #11400 (-1327)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:35:01
Rank: #11071 (+329)
15K → 20K
23:40 | 7:37/mi
Half· 13.11 mi
1:40:10
Rank: #11045 (+26)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:58:54
Rank: #10936 (+109)
Half → 25K
18:44 | 7:44/mi
30K· 18.64 mi
2:23:29
Rank: #10749 (+187)
25K → 30K
24:35 | 7:55/mi
20M
2:34:22
Rank: #10705 (+44)
30K → 20M
10:53 | 8:01/mi
21M
2:42:43
Rank: #10602 (+103)
20M → 21M
8:21 | 8:21/mi
35K· 21.75 mi
2:48:32
Rank: #10566 (+36)
21M → 35K
5:49 | 7:46/mi
23M
2:58:54
Rank: #10624 (-58)
35K → 23M
10:22 | 8:17/mi
24M
3:07:09
Rank: #10720 (-96)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:14:19
Rank: #10779 (-59)
24M → 40K
7:10 | 8:23/mi
25.2M
3:17:23
Rank: #10784 (-5)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:25:29
Rank: #10818 (-34)
25.2M → Finish
8:06 | 7:57/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
Time1:40:10
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:45:19
Pace8:02 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1623:227:3123:22
7:31
-
10K
6.21 mi11:12:3246:387:3023:16
7:29
-0:02
15K
9.32 mi11:37:151:11:217:3924:43
7:57
+0:28
20K
12.43 mi12:00:551:35:017:3923:40
7:37
-0:20
Half
13.11 mi12:06:041:40:107:385:09
7:33
-0:04
25K
15.53 mi12:24:481:58:547:3918:44
7:44
+0:11
30K
18.64 mi12:49:232:23:297:4224:35
7:55
+0:11
20M
20.00 mi13:00:162:34:227:4310:53
8:01
+0:06
21M
21.00 mi13:08:372:42:437:458:21
8:21
+0:20
35K
21.75 mi13:14:262:48:327:455:49
7:46
-0:35
23M
23.00 mi13:24:482:58:547:4710:22
8:17
+0:31
24M
24.00 mi13:33:033:07:097:488:15
8:15
-0:02
40K
24.85 mi13:40:133:14:197:497:10
8:23
+0:08
25.2M
25.20 mi13:43:173:17:237:503:04
8:54
+0:31
Finish
26.22 mi13:51:233:25:297:518:06
7:57
-0:57

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

7:29 /mi

Average Pace

7:51 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:17

82% of race

Time at Steady Pace

34:08

17% of race

Time at Slower Pace

3:04

1% of race

Average Pace: 7:50 /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 mi10:49:1623:227:3123:22
7:31
#9799
10K
6.21 mi11:12:3246:387:3023:16
7:29
#10073
15K
9.32 mi11:37:151:11:217:3924:43
7:57
#11400
20K
12.43 mi12:00:551:35:017:3923:40
7:37
#11071
Half
13.11 mi12:06:041:40:107:385:09
7:33
#11045
25K
15.53 mi12:24:481:58:547:3918:44
7:44
#10936
30K
18.64 mi12:49:232:23:297:4224:35
7:55
#10749
20M
20.00 mi13:00:162:34:227:4310:53
8:01
#10705
21M
21.00 mi13:08:372:42:437:458:21
8:21
#10602
35K
21.75 mi13:14:262:48:327:455:49
7:46
#10566
23M
23.00 mi13:24:482:58:547:4710:22
8:17
#10624
24M
24.00 mi13:33:033:07:097:488:15
8:15
#10720
40K
24.85 mi13:40:133:14:197:497:10
8:23
#10779
25.2M
25.20 mi13:43:173:17:237:503:04
8:54
#10784
Finish
26.22 mi13:51:233:25:297:518:06
7:57
#10818
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi97998034803414022(Top 53%)9902(Top 65%)9902(Top 442%)
10K6.21 mi3.10 mi10073-2748189-1558189-15510356(Top 39%)8362(Top 55%)8362(Top 373%)
15K9.32 mi3.11 mi11400-13278837-6488837-64814022(Top 53%)9902(Top 65%)9902(Top 442%)
20K12.43 mi3.11 mi11071+3298691+1468691+14610213(Top 38%)8192(Top 54%)8192(Top 366%)
Half13.11 mi0.68 mi11045+268678+138678+1310575(Top 40%)8397(Top 55%)8397(Top 375%)
25K15.53 mi2.42 mi10936+1098604+748604+7410487(Top 39%)8250(Top 54%)8250(Top 368%)
30K18.64 mi3.11 mi10749+1878460+1448460+14410224(Top 38%)7945(Top 52%)7945(Top 355%)
20M20.00 mi1.36 mi10705+448405+558405+5510314(Top 39%)7927(Top 52%)7927(Top 354%)
21M21.00 mi1.00 mi10602+1038335+708335+709522(Top 36%)7360(Top 48%)7360(Top 328%)
35K21.75 mi0.75 mi10566+368293+428293+4210449(Top 39%)7854(Top 52%)7854(Top 350%)
23M23.00 mi1.25 mi10624-588293829311717(Top 44%)8335(Top 55%)8335(Top 372%)
24M24.00 mi1.00 mi10720-968316-238316-2312902(Top 48%)8794(Top 58%)8794(Top 392%)
40K24.85 mi0.85 mi10779-598326-108326-1012559(Top 47%)8567(Top 56%)8567(Top 382%)
25.2M25.20 mi0.35 mi10784-58314+128314+1211822(Top 44%)8165(Top 54%)8165(Top 364%)
Finish26.22 mi1.02 mi10818-348296+188296+1811710(Top 44%)8143(Top 54%)8143(Top 363%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14022

Males

9902

M40-44

9902

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10356

Males

8362

M40-44

8362

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14022

Males

9902

M40-44

9902

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10213

Males

8192

M40-44

8192

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10575

Males

8397

M40-44

8397

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10487

Males

8250

M40-44

8250

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10224

Males

7945

M40-44

7945

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10314

Males

7927

M40-44

7927

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9522

Males

7360

M40-44

7360

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

10449

Males

7854

M40-44

7854

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11717

Males

8335

M40-44

8335

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12902

Males

8794

M40-44

8794

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12559

Males

8567

M40-44

8567

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11822

Males

8165

M40-44

8165

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11710

Males

8143

M40-44

8143

Passing Analysis

Category:
Athletes Passed
1603*
Passed By
2620
Net Change
-1019
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9799
5K → 10K199472-274#9799#10073
10K → 15K131339-1327#10073#11400
15K → 20K36031+329#11400#11071
20K → Half4014+26#11071#11045
Half → 25K17566+109#11045#10936
25K → 30K27790+187#10936#10749
30K → 20M98*54+44#10749#10705
20M → 21M12926+103#10705#10602
21M → 35K6327+36#10602#10566
35K → 23M66124-58#10566#10624
23M → 24M40136-96#10624#10720
24M → 40K55114-59#10720#10779
40K → 25.2M2631-5#10779#10784
25.2M → Finish6296-34#10784#10818
TOTALS1603*2620-1019

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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