Boston Marathon logo
BOSTON MARATHON 2023

David Stroupe

Bib: 1647•M

NY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:03
Rank: #2031
Start → 5K
20:03 | 6:27/mi
10K· 6.21 mi
39:51
Rank: #2051 (-20)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
59:55
Rank: #2133 (-82)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:20:13
Rank: #2212 (-79)
15K → 20K
20:18 | 6:32/mi
Half· 13.11 mi
1:24:37
Rank: #2222 (-10)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:21
Rank: #2198 (+24)
Half → 25K
15:44 | 6:29/mi
30K· 18.64 mi
2:00:36
Rank: #2070 (+128)
25K → 30K
20:15 | 6:31/mi
20M
2:09:09
Rank: #1921 (+149)
30K → 20M
8:33 | 6:18/mi
21M
2:15:43
Rank: #1830 (+91)
20M → 21M
6:34 | 6:34/mi
35K· 21.75 mi
2:20:12
Rank: #1754 (+76)
21M → 35K
4:29 | 6:00/mi
23M
2:27:59
Rank: #1658 (+96)
35K → 23M
7:47 | 6:13/mi
24M
2:34:00
Rank: #1569 (+89)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:39:15
Rank: #1509 (+60)
24M → 40K
5:15 | 6:08/mi
25.2M
2:41:31
Rank: #1486 (+23)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:47:33
Rank: #1416 (+70)
25.2M → Finish
6:02 | 5:55/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 Half
Distance13.11 mi
Time1:24:37
Pace6:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:22:56
Pace6:20 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3620:036:2720:03
6:27
-
10K
6.21 mi10:40:2439:516:2519:48
6:22
-0:05
15K
9.32 mi11:00:2859:556:2620:04
6:28
+0:06
20K
12.43 mi11:20:461:20:136:2720:18
6:32
+0:04
Half
13.11 mi11:25:101:24:376:274:24
6:27
-0:05
25K
15.53 mi11:40:541:40:216:2815:44
6:29
+0:02
30K
18.64 mi12:01:092:00:366:2820:15
6:31
+0:02
20M
20.00 mi12:09:422:09:096:278:33
6:18
-0:13
21M
21.00 mi12:16:162:15:436:286:34
6:34
+0:16
35K
21.75 mi12:20:452:20:126:274:29
6:00
-0:34
23M
23.00 mi12:28:322:27:596:267:47
6:13
+0:13
24M
24.00 mi12:34:332:34:006:256:01
6:01
-0:12
40K
24.85 mi12:39:482:39:156:245:15
6:08
+0:07
25.2M
25.20 mi12:42:042:41:316:252:16
6:34
+0:26
Finish
26.22 mi12:48:062:47:336:246:02
5:55
-0:39

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

5:55 /mi

Average Pace

6:24 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:10

71% of race

Time at Steady Pace

49:23

29% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:23 /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 mi10:20:3620:036:2720:03
6:27
#2031
10K
6.21 mi10:40:2439:516:2519:48
6:22
#2051
15K
9.32 mi11:00:2859:556:2620:04
6:28
#2133
20K
12.43 mi11:20:461:20:136:2720:18
6:32
#2212
Half
13.11 mi11:25:101:24:376:274:24
6:27
#2222
25K
15.53 mi11:40:541:40:216:2815:44
6:29
#2198
30K
18.64 mi12:01:092:00:366:2820:15
6:31
#2070
20M
20.00 mi12:09:422:09:096:278:33
6:18
#1921
21M
21.00 mi12:16:162:15:436:286:34
6:34
#1830
35K
21.75 mi12:20:452:20:126:274:29
6:00
#1754
23M
23.00 mi12:28:322:27:596:267:47
6:13
#1658
24M
24.00 mi12:34:332:34:006:256:01
6:01
#1569
40K
24.85 mi12:39:482:39:156:245:15
6:08
#1509
25.2M
25.20 mi12:42:042:41:316:252:16
6:34
#1486
Finish
26.22 mi12:48:062:47:336:246:02
5:55
#1416
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2031193719372391(Top 9%)2294(Top 15%)2294(Top 102%)
10K6.21 mi3.10 mi2051-201966-291966-292089(Top 8%)2000(Top 13%)2000(Top 89%)
15K9.32 mi3.11 mi2133-822045-792045-792391(Top 9%)2294(Top 15%)2294(Top 102%)
20K12.43 mi3.11 mi2212-792118-732118-732466(Top 9%)2361(Top 16%)2361(Top 105%)
Half13.11 mi0.68 mi2222-102128-102128-102419(Top 9%)2318(Top 15%)2318(Top 103%)
25K15.53 mi2.42 mi2198+242107+212107+212103(Top 8%)2016(Top 13%)2016(Top 90%)
30K18.64 mi3.11 mi2070+1281986+1211986+1211623(Top 6%)1551(Top 10%)1551(Top 69%)
20M20.00 mi1.36 mi1921+1491839+1471839+147865(Top 3%)824(Top 5%)824(Top 37%)
21M21.00 mi1.00 mi1830+911752+871752+87800(Top 3%)757(Top 5%)757(Top 34%)
35K21.75 mi0.75 mi1754+761680+721680+72689(Top 3%)649(Top 4%)649(Top 29%)
23M23.00 mi1.25 mi1658+961585+951585+95654(Top 2%)618(Top 4%)618(Top 28%)
24M24.00 mi1.00 mi1569+891500+851500+85587(Top 2%)557(Top 4%)557(Top 25%)
40K24.85 mi0.85 mi1509+601440+601440+60564(Top 2%)533(Top 4%)533(Top 24%)
25.2M25.20 mi0.35 mi1486+231419+211419+21633(Top 2%)600(Top 4%)600(Top 27%)
Finish26.22 mi1.02 mi1416+701349+701349+70570(Top 2%)541(Top 4%)541(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2391

Males

2294

M40-44

2294

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2089

Males

2000

M40-44

2000

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2391

Males

2294

M40-44

2294

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2466

Males

2361

M40-44

2361

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2419

Males

2318

M40-44

2318

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2103

Males

2016

M40-44

2016

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1623

Males

1551

M40-44

1551

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

865

Males

824

M40-44

824

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

800

Males

757

M40-44

757

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

689

Males

649

M40-44

649

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

654

Males

618

M40-44

618

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

587

Males

557

M40-44

557

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

564

Males

533

M40-44

533

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

633

Males

600

M40-44

600

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

570

Males

541

M40-44

541

Passing Analysis

Category:
Athletes Passed
1051
Passed By
436
Net Change
+615
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2031
5K → 10K105125-20#2031#2051
10K → 15K35117-82#2051#2133
15K → 20K38117-79#2133#2212
20K → Half818-10#2212#2222
Half → 25K5632+24#2222#2198
25K → 30K14517+128#2198#2070
30K → 20M1501+149#2070#1921
20M → 21M921+91#1921#1830
21M → 35K760+76#1830#1754
35K → 23M982+96#1754#1658
23M → 24M901+89#1658#1569
24M → 40K633+60#1569#1509
40K → 25.2M252+23#1509#1486
25.2M → Finish700+70#1486#1416
TOTALS1051436+615
📊

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