Boston Marathon logo
BOSTON MARATHON 2023

Charles Diprima

Bib: 26676•M

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:32/mi
26:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
52:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:22/mi
1:18:09
↑ 67↓ 78
20K· 12.43 mi
8:22/mi
1:44:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:49:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:10:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:38:11
↑ 181↓ 1480.2%
20M
8:03/mi
2:49:08
↑ 64↓ 500.2%
21M
8:53/mi
2:58:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:04:32
↑ 17↓ 861.7%
23M
9:35/mi
3:16:32
↑ 23↓ 630.6%
24M
9:06/mi
3:25:38
↓ 821.3%
40K· 24.85 mi
9:10/mi
3:33:28
↓ 200.3%
25.2M
9:25/mi
3:36:43
↑ 13↓ 160.2%
Finish· 26.22 mi
7:47/mi
3:44:39
↑ 22↓ 21

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
Time1:49:55
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:54:44
Pace8:45 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2426:308:3226:30
8:32
-
10K
6.21 mi12:09:0352:098:2425:39
8:15
-0:17
15K
9.32 mi12:35:031:18:098:2326:00
8:22
+0:07
20K
12.43 mi13:01:041:44:108:2326:01
8:22
0:00
Half
13.11 mi13:06:491:49:558:235:45
8:26
+0:04
25K
15.53 mi13:27:442:10:508:2520:55
8:38
+0:12
30K
18.64 mi13:55:052:38:118:2927:21
8:48
+0:10
20M
20.00 mi14:06:022:49:088:2710:57
8:03
-0:45
21M
21.00 mi14:14:552:58:018:298:53
8:53
+0:50
35K
21.75 mi14:21:263:04:328:296:31
8:43
-0:10
23M
23.00 mi14:33:263:16:328:3312:00
9:35
+0:52
24M
24.00 mi14:42:323:25:388:349:06
9:06
-0:29
40K
24.85 mi14:50:223:33:288:357:50
9:10
+0:04
25.2M
25.20 mi14:53:373:36:438:363:15
9:25
+0:15
Finish
26.22 mi15:01:333:44:398:347:56
7:47
-1:38

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

7:47 /mi

Average Pace

8:34 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:33

43% of race

Time at Steady Pace

1:27:02

39% of race

Time at Slower Pace

41:04

18% of race

Average Pace: 8:34 /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 mi11:43:2426:308:3226:30
8:32
#17741
10K
6.21 mi12:09:0352:098:2425:39
8:15
#17155
15K
9.32 mi12:35:031:18:098:2326:00
8:22
#17093
20K
12.43 mi13:01:041:44:108:2326:01
8:22
#16806
Half
13.11 mi13:06:491:49:558:235:45
8:26
#16841
25K
15.53 mi13:27:442:10:508:2520:55
8:38
#16871
30K
18.64 mi13:55:052:38:118:2927:21
8:48
#16687
20M
20.00 mi14:06:022:49:088:2710:57
8:03
#16258
21M
21.00 mi14:14:552:58:018:298:53
8:53
#16039
35K
21.75 mi14:21:263:04:328:296:31
8:43
#16043
23M
23.00 mi14:33:263:16:328:3312:00
9:35
#16231
24M
24.00 mi14:42:323:25:388:349:06
9:06
#16294
40K
24.85 mi14:50:223:33:288:357:50
9:10
#16306
25.2M
25.20 mi14:53:373:36:438:363:15
9:25
#16279
Finish
26.22 mi15:01:333:44:398:347:56
7:47
#16086
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17741113231132316957(Top 64%)11053(Top 73%)11053(Top 209%)
10K6.21 mi3.10 mi17155+58611110+21311110+21316614(Top 62%)10947(Top 72%)10947(Top 207%)
15K9.32 mi3.11 mi17093+6211108+211108+216957(Top 64%)11053(Top 73%)11053(Top 209%)
20K12.43 mi3.11 mi16806+28710977+13110977+13116077(Top 60%)10663(Top 70%)10663(Top 202%)
Half13.11 mi0.68 mi16841-3510993-1610993-1617246(Top 65%)11177(Top 74%)11177(Top 211%)
25K15.53 mi2.42 mi16871-3010975+1810975+1816946(Top 64%)10943(Top 72%)10943(Top 207%)
30K18.64 mi3.11 mi16687+18410874+10110874+10116075(Top 60%)10508(Top 69%)10508(Top 199%)
20M20.00 mi1.36 mi16258+42910684+19010684+19010706(Top 40%)8117(Top 53%)8117(Top 154%)
21M21.00 mi1.00 mi16039+21910581+10310581+10312753(Top 48%)8928(Top 59%)8928(Top 169%)
35K21.75 mi0.75 mi16043-410561+2010561+2016432(Top 62%)10449(Top 69%)10449(Top 198%)
23M23.00 mi1.25 mi16231-18810637-7610637-7618643(Top 70%)11406(Top 75%)11406(Top 216%)
24M24.00 mi1.00 mi16294-6310645-810645-817657(Top 66%)10915(Top 72%)10915(Top 207%)
40K24.85 mi0.85 mi16306-1210628+1710628+1716899(Top 63%)10535(Top 69%)10535(Top 199%)
25.2M25.20 mi0.35 mi16279+2710614+1410614+1414782(Top 56%)9586(Top 63%)9586(Top 181%)
Finish26.22 mi1.02 mi16086+19310526+8810526+8810569(Top 40%)7593(Top 50%)7593(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16957

Males

11053

M18-39

11053

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16614

Males

10947

M18-39

10947

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16957

Males

11053

M18-39

11053

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16077

Males

10663

M18-39

10663

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17246

Males

11177

M18-39

11177

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16946

Males

10943

M18-39

10943

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16075

Males

10508

M18-39

10508

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10706

Males

8117

M18-39

8117

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12753

Males

8928

M18-39

8928

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16432

Males

10449

M18-39

10449

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18643

Males

11406

M18-39

11406

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17657

Males

10915

M18-39

10915

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16899

Males

10535

M18-39

10535

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14782

Males

9586

M18-39

9586

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10569

Males

7593

M18-39

7593

Passing Analysis

Category:
Athletes Passed
2749
Passed By
1094
Net Change
+1655
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17741
5K → 10K712126+586#17741#17155
10K → 15K220158+62#17155#17093
15K → 20K34962+287#17093#16806
20K → Half1146-35#16806#16841
Half → 25K102132-30#16841#16871
25K → 30K26076+184#16871#16687
30K → 20M4290+429#16687#16258
20M → 21M2223+219#16258#16039
21M → 35K5357-4#16039#16043
35K → 23M30218-188#16043#16231
23M → 24M51114-63#16231#16294
24M → 40K6274-12#16294#16306
40K → 25.2M4518+27#16306#16279
25.2M → Finish20310+193#16279#16086
TOTALS27491094+1655
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing