Boston Marathon logo
BOSTON MARATHON 2025

Will Boukalik

Bib: 12688•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M50-54)
#0 / 1996
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:15/mi
22:31
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:07:34
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:30:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:35:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:53:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:17:11
↑ 181↓ 1480.2%
20M
7:49/mi
2:27:48
↑ 64↓ 500.2%
21M
7:52/mi
2:35:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:18/mi
2:41:08
↑ 17↓ 861.7%
23M
7:39/mi
2:50:43
↑ 23↓ 630.6%
24M
7:40/mi
2:58:23
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:04:53
↓ 200.3%
25.2M
8:10/mi
3:07:42
↑ 13↓ 160.2%
Finish· 26.22 mi
6:50/mi
3:14:40
↑ 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
Time1:35:20
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0122:317:1522:31
7:15
-
10K
6.21 mi11:13:3645:067:1522:35
7:16
+0:01
15K
9.32 mi11:36:041:07:347:1522:28
7:14
-0:02
20K
12.43 mi11:58:541:30:247:1622:50
7:21
+0:07
Half
13.11 mi12:03:501:35:207:164:56
7:14
-0:07
25K
15.53 mi12:21:531:53:237:1818:03
7:27
+0:13
30K
18.64 mi12:45:412:17:117:2223:48
7:40
+0:13
20M
20.00 mi12:56:182:27:487:2310:37
7:49
+0:09
21M
21.00 mi13:04:102:35:407:257:52
7:52
+0:03
35K
21.75 mi13:09:382:41:087:255:28
7:18
-0:34
23M
23.00 mi13:19:132:50:437:259:35
7:39
+0:21
24M
24.00 mi13:26:532:58:237:267:40
7:40
+0:01
40K
24.85 mi13:33:233:04:537:266:30
7:36
-0:04
25.2M
25.20 mi13:36:123:07:427:272:49
8:10
+0:34
Finish
26.22 mi13:43:103:14:407:266:58
6:50
-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

6:50 /mi

Average Pace

7:26 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:49

65% of race

Time at Steady Pace

1:06:02

34% of race

Time at Slower Pace

2:49

1% of race

Average Pace: 7:25 /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 mi10:51:0122:317:1522:31
7:15
#9875
10K
6.21 mi11:13:3645:067:1522:35
7:16
#9959
15K
9.32 mi11:36:041:07:347:1522:28
7:14
#9733
20K
12.43 mi11:58:541:30:247:1622:50
7:21
#9632
Half
13.11 mi12:03:501:35:207:164:56
7:14
#9609
25K
15.53 mi12:21:531:53:237:1818:03
7:27
#9559
30K
18.64 mi12:45:412:17:117:2223:48
7:40
#9364
20M
20.00 mi12:56:182:27:487:2310:37
7:49
#9304
21M
21.00 mi13:04:102:35:407:257:52
7:52
#9094
35K
21.75 mi13:09:382:41:087:255:28
7:18
#8992
23M
23.00 mi13:19:132:50:437:259:35
7:39
#8826
24M
24.00 mi13:26:532:58:237:267:40
7:40
#8824
40K
24.85 mi13:33:233:04:537:266:30
7:36
#8698
25.2M
25.20 mi13:36:123:07:427:272:49
8:10
#8644
Finish
26.22 mi13:43:103:14:407:266:58
6:50
#8436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9875810181019371(Top 33%)7750(Top 48%)7750(Top 388%)
10K6.21 mi3.10 mi9959-848146-458146-4510067(Top 35%)8177(Top 51%)8177(Top 410%)
15K9.32 mi3.11 mi9733+2267996+1507996+1509371(Top 33%)7750(Top 48%)7750(Top 388%)
20K12.43 mi3.11 mi9632+1017905+917905+919439(Top 33%)7703(Top 48%)7703(Top 386%)
Half13.11 mi0.68 mi9609+237884+217884+219285(Top 33%)7628(Top 47%)7628(Top 382%)
25K15.53 mi2.42 mi9559+507827+577827+579484(Top 33%)7585(Top 47%)7585(Top 380%)
30K18.64 mi3.11 mi9364+1957674+1537674+1538895(Top 31%)7082(Top 44%)7082(Top 355%)
20M20.00 mi1.36 mi9304+607602+727602+729089(Top 32%)7039(Top 44%)7039(Top 353%)
21M21.00 mi1.00 mi9094+2107454+1487454+1486585(Top 23%)5434(Top 34%)5434(Top 272%)
35K21.75 mi0.75 mi8992+1027376+787376+787282(Top 26%)5866(Top 36%)5866(Top 294%)
23M23.00 mi1.25 mi8826+1667241+1357241+1357600(Top 27%)5930(Top 37%)5930(Top 297%)
24M24.00 mi1.00 mi8824+27199+427199+428876(Top 31%)6583(Top 41%)6583(Top 330%)
40K24.85 mi0.85 mi8698+1267087+1127087+1127426(Top 26%)5684(Top 35%)5684(Top 285%)
25.2M25.20 mi0.35 mi8644+547043+447043+446855(Top 24%)5274(Top 33%)5274(Top 264%)
Finish26.22 mi1.02 mi8436+2086900+1436900+1434725(Top 17%)3949(Top 25%)3949(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9371

Males

7750

M50-54

7750

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

10067

Males

8177

M50-54

8177

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9371

Males

7750

M50-54

7750

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9439

Males

7703

M50-54

7703

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9285

Males

7628

M50-54

7628

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9484

Males

7585

M50-54

7585

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8895

Males

7082

M50-54

7082

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

9089

Males

7039

M50-54

7039

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6585

Males

5434

M50-54

5434

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7282

Males

5866

M50-54

5866

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7600

Males

5930

M50-54

5930

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8876

Males

6583

M50-54

6583

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7426

Males

5684

M50-54

5684

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6855

Males

5274

M50-54

5274

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4725

Males

3949

M50-54

3949

Passing Analysis

Category:
Athletes Passed
2412
Passed By
972
Net Change
+1439
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9875
5K → 10K189272-84#9875#9959
10K → 15K29266+226#9959#9733
15K → 20K227126+101#9733#9632
20K → Half4522+23#9632#9609
Half → 25K176126+50#9609#9559
25K → 30K312117+195#9559#9364
30K → 20M13070+60#9364#9304
20M → 21M22414+210#9304#9094
21M → 35K11715+102#9094#8992
35K → 23M19630+166#8992#8826
23M → 24M8482+2#8826#8824
24M → 40K14216+126#8824#8698
40K → 25.2M6511+54#8698#8644
25.2M → Finish2135+208#8644#8436
TOTALS2412972+1439
📊

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