Boston Marathon logo
BOSTON MARATHON 2023

William Ditullio

Bib: 26930•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
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
27:35
Rank: #19879
Start → 5K
27:35 | 8:53/mi
10K· 6.21 mi
54:23
Rank: #19416 (+463)
5K → 10K
26:48 | 8:38/mi
15K· 9.32 mi
1:20:42
Rank: #18800 (+616)
10K → 15K
26:19 | 8:28/mi
20K· 12.43 mi
1:47:32
Rank: #18520 (+280)
15K → 20K
26:50 | 8:38/mi
Half· 13.11 mi
1:53:23
Rank: #18504 (+16)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:14:59
Rank: #18511 (-7)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:44:06
Rank: #18604 (-93)
25K → 30K
29:07 | 9:22/mi
20M
2:57:07
Rank: #18643 (-39)
30K → 20M
13:01 | 9:35/mi
21M
3:08:15
Rank: #18885 (-242)
20M → 21M
11:08 | 11:08/mi
35K· 21.75 mi
3:15:23
Rank: #18930 (-45)
21M → 35K
7:08 | 9:32/mi
23M
3:28:06
Rank: #19069 (-139)
35K → 23M
12:43 | 10:09/mi
24M
3:37:53
Rank: #19124 (-55)
23M → 24M
9:47 | 9:47/mi
40K· 24.85 mi
3:46:12
Rank: #19149 (-25)
24M → 40K
8:19 | 9:44/mi
25.2M
3:49:43
Rank: #19126 (+23)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:58:43
Rank: #19080 (+46)
25.2M → Finish
9:00 | 8:50/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
Time1:53:23
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:05:20
Pace9:34 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3827:358:5327:35
8:53
-
10K
6.21 mi12:19:2654:238:4526:48
8:38
-0:15
15K
9.32 mi12:45:451:20:428:3926:19
8:28
-0:10
20K
12.43 mi13:12:351:47:328:3926:50
8:38
+0:10
Half
13.11 mi13:18:261:53:238:395:51
8:34
-0:04
25K
15.53 mi13:40:022:14:598:4121:36
8:55
+0:21
30K
18.64 mi14:09:092:44:068:4829:07
9:22
+0:27
20M
20.00 mi14:22:102:57:078:5113:01
9:35
+0:13
21M
21.00 mi14:33:183:08:158:5811:08
11:08
+1:33
35K
21.75 mi14:40:263:15:238:597:08
9:32
-1:36
23M
23.00 mi14:53:093:28:069:0312:43
10:09
+0:37
24M
24.00 mi15:02:563:37:539:059:47
9:47
-0:22
40K
24.85 mi15:11:153:46:129:068:19
9:44
-0:03
25.2M
25.20 mi15:14:463:49:439:073:31
10:12
+0:28
Finish
26.22 mi15:23:463:58:439:079:00
8:50
-1:22

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

8:28 /mi

Average Pace

9:07 /mi

Slowest Pace

11:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:59

60% of race

Time at Steady Pace

49:16

21% of race

Time at Slower Pace

45:28

19% of race

Average Pace: 9:06 /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 mi11:52:3827:358:5327:35
8:53
#19879
10K
6.21 mi12:19:2654:238:4526:48
8:38
#19416
15K
9.32 mi12:45:451:20:428:3926:19
8:28
#18800
20K
12.43 mi13:12:351:47:328:3926:50
8:38
#18520
Half
13.11 mi13:18:261:53:238:395:51
8:34
#18504
25K
15.53 mi13:40:022:14:598:4121:36
8:55
#18511
30K
18.64 mi14:09:092:44:068:4829:07
9:22
#18604
20M
20.00 mi14:22:102:57:078:5113:01
9:35
#18643
21M
21.00 mi14:33:183:08:158:5811:08
11:08
#18885
35K
21.75 mi14:40:263:15:238:597:08
9:32
#18930
23M
23.00 mi14:53:093:28:069:0312:43
10:09
#19069
24M
24.00 mi15:02:563:37:539:059:47
9:47
#19124
40K
24.85 mi15:11:153:46:129:068:19
9:44
#19149
25.2M
25.20 mi15:14:463:49:439:073:31
10:12
#19126
Finish
26.22 mi15:23:463:58:439:079:00
8:50
#19080
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19879121251212517602(Top 66%)11311(Top 75%)11311(Top 505%)
10K6.21 mi3.10 mi19416+46311986+13911986+13918975(Top 71%)11885(Top 78%)11885(Top 530%)
15K9.32 mi3.11 mi18800+61611774+21211774+21217602(Top 66%)11311(Top 75%)11311(Top 505%)
20K12.43 mi3.11 mi18520+28011685+8911685+8917717(Top 67%)11348(Top 75%)11348(Top 506%)
Half13.11 mi0.68 mi18504+1611679+611679+618160(Top 68%)11566(Top 76%)11566(Top 516%)
25K15.53 mi2.42 mi18511-711654+2511654+2518494(Top 69%)11633(Top 77%)11633(Top 519%)
30K18.64 mi3.11 mi18604-9311658-411658-418901(Top 71%)11738(Top 77%)11738(Top 524%)
20M20.00 mi1.36 mi18643-3911667-911667-919142(Top 72%)11749(Top 77%)11749(Top 524%)
21M21.00 mi1.00 mi18885-24211767-10011767-10021088(Top 79%)12556(Top 83%)12556(Top 560%)
35K21.75 mi0.75 mi18930-4511773-611773-619940(Top 75%)12021(Top 79%)12021(Top 536%)
23M23.00 mi1.25 mi19069-13911826-5311826-5320440(Top 77%)12218(Top 81%)12218(Top 545%)
24M24.00 mi1.00 mi19124-5511838-1211838-1220155(Top 76%)12075(Top 80%)12075(Top 539%)
40K24.85 mi0.85 mi19149-2511844-611844-619098(Top 72%)11534(Top 76%)11534(Top 515%)
25.2M25.20 mi0.35 mi19126+2311831+1311831+1318094(Top 68%)11077(Top 73%)11077(Top 494%)
Finish26.22 mi1.02 mi19080+4611806+2511806+2517192(Top 65%)10694(Top 70%)10694(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17602

Males

11311

M40-44

11311

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18975

Males

11885

M40-44

11885

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17602

Males

11311

M40-44

11311

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17717

Males

11348

M40-44

11348

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

18160

Males

11566

M40-44

11566

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

18494

Males

11633

M40-44

11633

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

18901

Males

11738

M40-44

11738

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19142

Males

11749

M40-44

11749

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

21088

Males

12556

M40-44

12556

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19940

Males

12021

M40-44

12021

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

20440

Males

12218

M40-44

12218

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20155

Males

12075

M40-44

12075

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19098

Males

11534

M40-44

11534

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18094

Males

11077

M40-44

11077

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

17192

Males

10694

M40-44

10694

Passing Analysis

Category:
Athletes Passed
2252
Passed By
1453
Net Change
+799
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19879
5K → 10K610147+463#19879#19416
10K → 15K64630+616#19416#18800
15K → 20K31939+280#18800#18520
20K → Half3721+16#18520#18504
Half → 25K135142-7#18504#18511
25K → 30K144237-93#18511#18604
30K → 20M73112-39#18604#18643
20M → 21M25267-242#18643#18885
21M → 35K2974-45#18885#18930
35K → 23M41180-139#18930#19069
23M → 24M4297-55#19069#19124
24M → 40K4267-25#19124#19149
40K → 25.2M3815+23#19149#19126
25.2M → Finish7125+46#19126#19080
TOTALS22521453+799
📊

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