Boston Marathon logo
BOSTON MARATHON 2025

Matthew Antoniou

Bib: 14601•M

MI

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:41
Rank: #22035
Start → 5K
27:41 | 8:55/mi
10K· 6.21 mi
55:03
Rank: #21750 (+285)
5K → 10K
27:22 | 8:49/mi
15K· 9.32 mi
1:22:37
Rank: #21609 (+141)
10K → 15K
27:34 | 8:52/mi
20K· 12.43 mi
1:50:47
Rank: #21526 (+83)
15K → 20K
28:10 | 9:04/mi
Half· 13.11 mi
1:56:44
Rank: #21456 (+70)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:19:52
Rank: #21566 (-110)
Half → 25K
23:08 | 9:32/mi
30K· 18.64 mi
2:50:56
Rank: #21619 (-53)
25K → 30K
31:04 | 10:00/mi
20M
3:04:33
Rank: #21579 (+40)
30K → 20M
13:37 | 10:01/mi
21M
3:15:43
Rank: #21610 (-31)
20M → 21M
11:10 | 11:10/mi
35K· 21.75 mi
3:23:06
Rank: #21610
21M → 35K
7:23 | 9:52/mi
23M
3:35:34
Rank: #21518 (+92)
35K → 23M
12:28 | 9:57/mi
24M
3:45:18
Rank: #21466 (+52)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:53:31
Rank: #21368 (+98)
24M → 40K
8:13 | 9:37/mi
25.2M
3:57:02
Rank: #21303 (+65)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
4:05:53
Rank: #21179 (+124)
25.2M → Finish
8:51 | 8:41/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
Time1:56:44
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:09:09
Pace9:51 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2827:418:5527:41
8:55
-
10K
6.21 mi11:45:5055:038:5227:22
8:49
-0:06
15K
9.32 mi12:13:241:22:378:5227:34
8:52
+0:03
20K
12.43 mi12:41:341:50:478:5528:10
9:04
+0:12
Half
13.11 mi12:47:311:56:448:545:57
8:43
-0:21
25K
15.53 mi13:10:392:19:529:0023:08
9:32
+0:49
30K
18.64 mi13:41:432:50:569:1031:04
10:00
+0:28
20M
20.00 mi13:55:203:04:339:1413:37
10:01
+0:01
21M
21.00 mi14:06:303:15:439:1911:10
11:10
+1:09
35K
21.75 mi14:13:533:23:069:207:23
9:52
-1:18
23M
23.00 mi14:26:213:35:349:2212:28
9:57
+0:05
24M
24.00 mi14:36:053:45:189:239:44
9:44
-0:13
40K
24.85 mi14:44:183:53:319:248:13
9:37
-0:07
25.2M
25.20 mi14:47:493:57:029:243:31
10:12
+0:35
Finish
26.22 mi14:56:404:05:539:238:51
8:41
-1:31

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

8:41 /mi

Average Pace

9:23 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:35

51% of race

Time at Steady Pace

1:00:56

25% of race

Time at Slower Pace

59:22

24% of race

Average Pace: 9:23 /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 mi11:18:2827:418:5527:41
8:55
#22035
10K
6.21 mi11:45:5055:038:5227:22
8:49
#21750
15K
9.32 mi12:13:241:22:378:5227:34
8:52
#21609
20K
12.43 mi12:41:341:50:478:5528:10
9:04
#21526
Half
13.11 mi12:47:311:56:448:545:57
8:43
#21456
25K
15.53 mi13:10:392:19:529:0023:08
9:32
#21566
30K
18.64 mi13:41:432:50:569:1031:04
10:00
#21619
20M
20.00 mi13:55:203:04:339:1413:37
10:01
#21579
21M
21.00 mi14:06:303:15:439:1911:10
11:10
#21610
35K
21.75 mi14:13:533:23:069:207:23
9:52
#21610
23M
23.00 mi14:26:213:35:349:2212:28
9:57
#21518
24M
24.00 mi14:36:053:45:189:239:44
9:44
#21466
40K
24.85 mi14:44:183:53:319:248:13
9:37
#21368
25.2M
25.20 mi14:47:493:57:029:243:31
10:12
#21303
Finish
26.22 mi14:56:404:05:539:238:51
8:41
#21179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22035133291332921406(Top 75%)13127(Top 82%)13127(Top 658%)
10K6.21 mi3.10 mi21750+28513216+11313216+11321433(Top 75%)13105(Top 81%)13105(Top 657%)
15K9.32 mi3.11 mi21609+14113180+3613180+3621406(Top 75%)13127(Top 82%)13127(Top 658%)
20K12.43 mi3.11 mi21526+8313138+4213138+4221292(Top 75%)13041(Top 81%)13041(Top 653%)
Half13.11 mi0.68 mi21456+7013107+3113107+3120460(Top 72%)12676(Top 79%)12676(Top 635%)
25K15.53 mi2.42 mi21566-11013143-3613143-3621990(Top 77%)13285(Top 82%)13285(Top 666%)
30K18.64 mi3.11 mi21619-5313146-313146-321593(Top 76%)12982(Top 81%)12982(Top 650%)
20M20.00 mi1.36 mi21579+4013113+3313113+3321004(Top 74%)12591(Top 78%)12591(Top 631%)
21M21.00 mi1.00 mi21610-3113099+1413099+1421800(Top 77%)12880(Top 80%)12880(Top 645%)
35K21.75 mi0.75 mi2161013091+813091+821520(Top 76%)12680(Top 79%)12680(Top 635%)
23M23.00 mi1.25 mi21518+9213017+7413017+7420334(Top 72%)12071(Top 75%)12071(Top 605%)
24M24.00 mi1.00 mi21466+5212976+4112976+4120492(Top 72%)12094(Top 75%)12094(Top 606%)
40K24.85 mi0.85 mi21368+9812911+6512911+6519126(Top 67%)11387(Top 71%)11387(Top 570%)
25.2M25.20 mi0.35 mi21303+6512873+3812873+3817868(Top 63%)10770(Top 67%)10770(Top 540%)
Finish26.22 mi1.02 mi21179+12412800+7312800+7317379(Top 61%)10592(Top 66%)10592(Top 531%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21406

Males

13127

M50-54

13127

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21433

Males

13105

M50-54

13105

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21406

Males

13127

M50-54

13127

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21292

Males

13041

M50-54

13041

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20460

Males

12676

M50-54

12676

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21990

Males

13285

M50-54

13285

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21593

Males

12982

M50-54

12982

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21004

Males

12591

M50-54

12591

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21800

Males

12880

M50-54

12880

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21520

Males

12680

M50-54

12680

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

20334

Males

12071

M50-54

12071

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20492

Males

12094

M50-54

12094

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19126

Males

11387

M50-54

11387

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17868

Males

10770

M50-54

10770

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17379

Males

10592

M50-54

10592

Passing Analysis

Category:
Athletes Passed
2047
Passed By
1191
Net Change
+856
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22035
5K → 10K426141+285#22035#21750
10K → 15K277136+141#21750#21609
15K → 20K236153+83#21609#21526
20K → Half8010+70#21526#21456
Half → 25K105215-110#21456#21566
25K → 30K183236-53#21566#21619
30K → 20M11373+40#21619#21579
20M → 21M71102-31#21579#21610
21M → 35K41410#21610#21610
35K → 23M12634+92#21610#21518
23M → 24M8533+52#21518#21466
24M → 40K10911+98#21466#21368
40K → 25.2M672+65#21368#21303
25.2M → Finish1284+124#21303#21179
TOTALS20471191+856
📊

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