Boston Marathon logo
BOSTON MARATHON 2023

John Bucci

Bib: 10102•M

ME

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 28%
Division (M55-59)
#0 / 1422
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:37
Rank: #10534
Start → 5K
23:37 | 7:36/mi
10K· 6.21 mi
46:43
Rank: #10200 (+334)
5K → 10K
23:06 | 7:26/mi
15K· 9.32 mi
1:09:07
Rank: #9311 (+889)
10K → 15K
22:24 | 7:13/mi
20K· 12.43 mi
1:31:47
Rank: #8885 (+426)
15K → 20K
22:40 | 7:18/mi
Half· 13.11 mi
1:36:44
Rank: #8840 (+45)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:54:29
Rank: #8588 (+252)
Half → 25K
17:45 | 7:19/mi
30K· 18.64 mi
2:17:37
Rank: #8230 (+358)
25K → 30K
23:08 | 7:27/mi
20M
2:27:48
Rank: #8099 (+131)
30K → 20M
10:11 | 7:30/mi
21M
2:35:33
Rank: #7923 (+176)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:40:53
Rank: #7825 (+98)
21M → 35K
5:20 | 7:08/mi
23M
2:50:09
Rank: #7668 (+157)
35K → 23M
9:16 | 7:24/mi
24M
2:57:22
Rank: #7553 (+115)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
3:03:34
Rank: #7434 (+119)
24M → 40K
6:12 | 7:15/mi
25.2M
3:06:13
Rank: #7387 (+47)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:13:12
Rank: #7208 (+179)
25.2M → Finish
6:59 | 6:51/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⚖️ Balanced
Distance13.11 mi
Time1:36:44
Pace7:23 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:36:28
Pace7:22 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4623:377:3623:37
7:36
-
10K
6.21 mi11:12:5246:437:3123:06
7:26
-0:10
15K
9.32 mi11:35:161:09:077:2522:24
7:13
-0:13
20K
12.43 mi11:57:561:31:477:2322:40
7:18
+0:05
Half
13.11 mi12:02:531:36:447:234:57
7:15
-0:03
25K
15.53 mi12:20:381:54:297:2217:45
7:19
+0:04
30K
18.64 mi12:43:462:17:377:2323:08
7:27
+0:08
20M
20.00 mi12:53:572:27:487:2310:11
7:30
+0:03
21M
21.00 mi13:01:422:35:337:247:45
7:45
+0:15
35K
21.75 mi13:07:022:40:537:245:20
7:08
-0:37
23M
23.00 mi13:16:182:50:097:249:16
7:24
+0:16
24M
24.00 mi13:23:312:57:227:237:13
7:13
-0:11
40K
24.85 mi13:29:433:03:347:236:12
7:15
+0:02
25.2M
25.20 mi13:32:223:06:137:232:39
7:41
+0:26
Finish
26.22 mi13:39:213:13:127:226:59
6:51
-0:50

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

6:51 /mi

Average Pace

7:22 /mi

Slowest Pace

7:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:11

82% of race

Time at Steady Pace

34:01

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi10:49:4623:377:3623:37
7:36
#10534
10K
6.21 mi11:12:5246:437:3123:06
7:26
#10200
15K
9.32 mi11:35:161:09:077:2522:24
7:13
#9311
20K
12.43 mi11:57:561:31:477:2322:40
7:18
#8885
Half
13.11 mi12:02:531:36:447:234:57
7:15
#8840
25K
15.53 mi12:20:381:54:297:2217:45
7:19
#8588
30K
18.64 mi12:43:462:17:377:2323:08
7:27
#8230
20M
20.00 mi12:53:572:27:487:2310:11
7:30
#8099
21M
21.00 mi13:01:422:35:337:247:45
7:45
#7923
35K
21.75 mi13:07:022:40:537:245:20
7:08
#7825
23M
23.00 mi13:16:182:50:097:249:16
7:24
#7668
24M
24.00 mi13:23:312:57:227:237:13
7:13
#7553
40K
24.85 mi13:29:433:03:347:236:12
7:15
#7434
25.2M
25.20 mi13:32:223:06:137:232:39
7:41
#7387
Finish
26.22 mi13:39:213:13:127:226:59
6:51
#7208
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10534841684167855(Top 30%)6824(Top 45%)6824(Top 480%)
10K6.21 mi3.10 mi10200+3348256+1608256+1609912(Top 37%)8117(Top 53%)8117(Top 571%)
15K9.32 mi3.11 mi9311+8897751+5057751+5057855(Top 30%)6824(Top 45%)6824(Top 480%)
20K12.43 mi3.11 mi8885+4267483+2687483+2687738(Top 29%)6713(Top 44%)6713(Top 472%)
Half13.11 mi0.68 mi8840+457454+297454+298193(Top 31%)7007(Top 46%)7007(Top 493%)
25K15.53 mi2.42 mi8588+2527285+1697285+1697413(Top 28%)6425(Top 42%)6425(Top 452%)
30K18.64 mi3.11 mi8230+3587018+2677018+2676864(Top 26%)5974(Top 39%)5974(Top 420%)
20M20.00 mi1.36 mi8099+1316919+996919+996736(Top 25%)5796(Top 38%)5796(Top 408%)
21M21.00 mi1.00 mi7923+1766796+1236796+1235913(Top 22%)5140(Top 34%)5140(Top 361%)
35K21.75 mi0.75 mi7825+986722+746722+746090(Top 23%)5298(Top 35%)5298(Top 373%)
23M23.00 mi1.25 mi7668+1576603+1196603+1195875(Top 22%)5100(Top 34%)5100(Top 359%)
24M24.00 mi1.00 mi7553+1156501+1026501+1025834(Top 22%)5000(Top 33%)5000(Top 352%)
40K24.85 mi0.85 mi7434+1196392+1096392+1095162(Top 19%)4458(Top 29%)4458(Top 314%)
25.2M25.20 mi0.35 mi7387+476355+376355+374817(Top 18%)4170(Top 27%)4170(Top 293%)
Finish26.22 mi1.02 mi7208+1796214+1416214+1414380(Top 16%)3838(Top 25%)3838(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

7855

Males

6824

M55-59

6824

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9912

Males

8117

M55-59

8117

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

7855

Males

6824

M55-59

6824

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7738

Males

6713

M55-59

6713

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8193

Males

7007

M55-59

7007

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7413

Males

6425

M55-59

6425

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6864

Males

5974

M55-59

5974

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6736

Males

5796

M55-59

5796

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5913

Males

5140

M55-59

5140

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6090

Males

5298

M55-59

5298

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5875

Males

5100

M55-59

5100

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5834

Males

5000

M55-59

5000

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5162

Males

4458

M55-59

4458

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4817

Males

4170

M55-59

4170

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4380

Males

3838

M55-59

3838

Passing Analysis

Category:
Athletes Passed
3625*
Passed By
299
Net Change
+3326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10534
5K → 10K497*163+334#10534#10200
10K → 15K894*5+889#10200#9311
15K → 20K4359+426#9311#8885
20K → Half527+45#8885#8840
Half → 25K26513+252#8840#8588
25K → 30K37719+358#8588#8230
30K → 20M15322+131#8230#8099
20M → 21M1859+176#8099#7923
21M → 35K1024+98#7923#7825
35K → 23M16912+157#7825#7668
23M → 24M12914+115#7668#7553
24M → 40K13213+119#7553#7434
40K → 25.2M514+47#7434#7387
25.2M → Finish1845+179#7387#7208
TOTALS3625*299+3326

* 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