Boston Marathon logo
BOSTON MARATHON 2023

David Troxel

Bib: 19053•M

KY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:05
Rank: #20623
Start → 5K
28:05 | 9:02/mi
10K· 6.21 mi
55:16
Rank: #20159 (+464)
5K → 10K
27:11 | 8:45/mi
15K· 9.32 mi
1:22:27
Rank: #19840 (+319)
10K → 15K
27:11 | 8:45/mi
20K· 12.43 mi
1:50:03
Rank: #19613 (+227)
15K → 20K
27:36 | 8:53/mi
Half· 13.11 mi
1:56:00
Rank: #19585 (+28)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:17:22
Rank: #19320 (+265)
Half → 25K
21:22 | 8:49/mi
30K· 18.64 mi
2:45:13
Rank: #18901 (+419)
25K → 30K
27:51 | 8:58/mi
20M
2:57:30
Rank: #18757 (+144)
30K → 20M
12:17 | 9:02/mi
21M
3:07:23
Rank: #18655 (+102)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:14:11
Rank: #18634 (+21)
21M → 35K
6:48 | 9:05/mi
23M
3:25:39
Rank: #18526 (+108)
35K → 23M
11:28 | 9:09/mi
24M
3:34:38
Rank: #18466 (+60)
23M → 24M
8:59 | 8:59/mi
40K· 24.85 mi
3:42:18
Rank: #18368 (+98)
24M → 40K
7:40 | 8:58/mi
25.2M
3:45:40
Rank: #18344 (+24)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:54:16
Rank: #18219 (+125)
25.2M → Finish
8:36 | 8:26/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
Time1:56:00
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time1:58:16
Pace9:01 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0528:059:0228:05
9:02
-
10K
6.21 mi11:48:1655:168:5427:11
8:45
-0:17
15K
9.32 mi12:15:271:22:278:5127:11
8:45
0:00
20K
12.43 mi12:43:031:50:038:5127:36
8:53
+0:08
Half
13.11 mi12:49:001:56:008:515:57
8:43
-0:10
25K
15.53 mi13:10:222:17:228:5121:22
8:49
+0:06
30K
18.64 mi13:38:132:45:138:5227:51
8:58
+0:09
20M
20.00 mi13:50:302:57:308:5212:17
9:02
+0:04
21M
21.00 mi14:00:233:07:238:559:53
9:53
+0:51
35K
21.75 mi14:07:113:14:118:566:48
9:05
-0:48
23M
23.00 mi14:18:393:25:398:5611:28
9:09
+0:04
24M
24.00 mi14:27:383:34:388:578:59
8:59
-0:10
40K
24.85 mi14:35:183:42:188:577:40
8:58
-0:01
25.2M
25.20 mi14:38:403:45:408:573:22
9:46
+0:48
Finish
26.22 mi14:47:163:54:168:568:36
8:26
-1:20

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

8:26 /mi

Average Pace

8:56 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:41:01

94% of race

Time at Steady Pace

13:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:56 /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 mi11:21:0528:059:0228:05
9:02
#20623
10K
6.21 mi11:48:1655:168:5427:11
8:45
#20159
15K
9.32 mi12:15:271:22:278:5127:11
8:45
#19840
20K
12.43 mi12:43:031:50:038:5127:36
8:53
#19613
Half
13.11 mi12:49:001:56:008:515:57
8:43
#19585
25K
15.53 mi13:10:222:17:228:5121:22
8:49
#19320
30K
18.64 mi13:38:132:45:138:5227:51
8:58
#18901
20M
20.00 mi13:50:302:57:308:5212:17
9:02
#18757
21M
21.00 mi14:00:233:07:238:559:53
9:53
#18655
35K
21.75 mi14:07:113:14:118:566:48
9:05
#18634
23M
23.00 mi14:18:393:25:398:5611:28
9:09
#18526
24M
24.00 mi14:27:383:34:388:578:59
8:59
#18466
40K
24.85 mi14:35:183:42:188:577:40
8:58
#18368
25.2M
25.20 mi14:38:403:45:408:573:22
9:46
#18344
Finish
26.22 mi14:47:163:54:168:568:36
8:26
#18219
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20623124191241919218(Top 72%)11970(Top 79%)11970(Top 842%)
10K6.21 mi3.10 mi20159+46412284+13512284+13519668(Top 74%)12155(Top 80%)12155(Top 855%)
15K9.32 mi3.11 mi19840+31912175+10912175+10919218(Top 72%)11970(Top 79%)11970(Top 842%)
20K12.43 mi3.11 mi19613+22712100+7512100+7519128(Top 72%)11936(Top 79%)11936(Top 839%)
Half13.11 mi0.68 mi19585+2812087+1312087+1319020(Top 71%)11896(Top 78%)11896(Top 837%)
25K15.53 mi2.42 mi19320+26511982+10511982+10518017(Top 68%)11438(Top 75%)11438(Top 804%)
30K18.64 mi3.11 mi18901+41911800+18211800+18216976(Top 64%)10905(Top 72%)10905(Top 767%)
20M20.00 mi1.36 mi18757+14411727+7311727+7316742(Top 63%)10724(Top 71%)10724(Top 754%)
21M21.00 mi1.00 mi18655+10211675+5211675+5217563(Top 66%)11037(Top 73%)11037(Top 776%)
35K21.75 mi0.75 mi18634+2111662+1311662+1318251(Top 69%)11253(Top 74%)11253(Top 791%)
23M23.00 mi1.25 mi18526+10811594+6811594+6816843(Top 63%)10621(Top 70%)10621(Top 747%)
24M24.00 mi1.00 mi18466+6011558+3611558+3617142(Top 64%)10688(Top 70%)10688(Top 752%)
40K24.85 mi0.85 mi18368+9811499+5911499+5915955(Top 60%)10116(Top 67%)10116(Top 711%)
25.2M25.20 mi0.35 mi18344+2411484+1511484+1516350(Top 61%)10273(Top 68%)10273(Top 722%)
Finish26.22 mi1.02 mi18219+12511420+6411420+6414992(Top 56%)9734(Top 64%)9734(Top 685%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19218

Males

11970

M55-59

11970

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19668

Males

12155

M55-59

12155

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19218

Males

11970

M55-59

11970

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19128

Males

11936

M55-59

11936

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

19020

Males

11896

M55-59

11896

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18017

Males

11438

M55-59

11438

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16976

Males

10905

M55-59

10905

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16742

Males

10724

M55-59

10724

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17563

Males

11037

M55-59

11037

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18251

Males

11253

M55-59

11253

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16843

Males

10621

M55-59

10621

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17142

Males

10688

M55-59

10688

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15955

Males

10116

M55-59

10116

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16350

Males

10273

M55-59

10273

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14992

Males

9734

M55-59

9734

Passing Analysis

Category:
Athletes Passed
2937
Passed By
533
Net Change
+2404
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20623
5K → 10K615151+464#20623#20159
10K → 15K39374+319#20159#19840
15K → 20K30174+227#19840#19613
20K → Half4113+28#19613#19585
Half → 25K29429+265#19585#19320
25K → 30K43819+419#19320#18901
30K → 20M16824+144#18901#18757
20M → 21M14038+102#18757#18655
21M → 35K5433+21#18655#18634
35K → 23M13426+108#18634#18526
23M → 24M8424+60#18526#18466
24M → 40K11012+98#18466#18368
40K → 25.2M328+24#18368#18344
25.2M → Finish1338+125#18344#18219
TOTALS2937533+2404
📊

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