Boston Marathon logo
BOSTON MARATHON 2025

Daniel Princic

Bib: 4178•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 25%
Masters (Masters Men)
#0 / 10463
Top 11%
Division (M45-49)
#0 / 2386
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:25
Rank: #7014
Start → 5K
21:25 | 6:54/mi
10K· 6.21 mi
42:52
Rank: #7142 (-128)
5K → 10K
21:27 | 6:54/mi
15K· 9.32 mi
1:04:10
Rank: #6944 (+198)
10K → 15K
21:18 | 6:51/mi
20K· 12.43 mi
1:26:24
Rank: #7187 (-243)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:31:04
Rank: #7158 (+29)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:47:55
Rank: #6904 (+254)
Half → 25K
16:51 | 6:57/mi
30K· 18.64 mi
2:08:58
Rank: #6100 (+804)
25K → 30K
21:03 | 6:47/mi
20M
2:17:59
Rank: #5730 (+370)
30K → 20M
9:01 | 6:38/mi
21M
2:24:53
Rank: #5435 (+295)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:29:44
Rank: #5275 (+160)
21M → 35K
4:51 | 6:29/mi
23M
2:38:06
Rank: #4992 (+283)
35K → 23M
8:22 | 6:41/mi
24M
2:44:40
Rank: #4808 (+184)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:50:17
Rank: #4625 (+183)
24M → 40K
5:37 | 6:34/mi
25.2M
2:52:39
Rank: #4542 (+83)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:58:56
Rank: #4327 (+215)
25.2M → Finish
6:17 | 6:10/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
Distance13.11 mi
Time1:31:04
Pace6:57 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:27:52
Pace6:42 /mi
📊Negative Split: 3.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:2821:256:5421:25
6:54
-
10K
6.21 mi10:48:5542:526:5421:27
6:54
0:00
15K
9.32 mi11:10:131:04:106:5321:18
6:51
-0:03
20K
12.43 mi11:32:271:26:246:5722:14
7:09
+0:18
Half
13.11 mi11:37:071:31:046:574:40
6:50
-0:19
25K
15.53 mi11:53:581:47:556:5716:51
6:57
+0:07
30K
18.64 mi12:15:012:08:586:5521:03
6:47
-0:10
20M
20.00 mi12:24:022:17:596:549:01
6:38
-0:09
21M
21.00 mi12:30:562:24:536:546:54
6:54
+0:16
35K
21.75 mi12:35:472:29:446:534:51
6:29
-0:25
23M
23.00 mi12:44:092:38:066:528:22
6:41
+0:12
24M
24.00 mi12:50:432:44:406:526:34
6:34
-0:07
40K
24.85 mi12:56:202:50:176:515:37
6:34
0:00
25.2M
25.20 mi12:58:422:52:396:512:22
6:52
+0:18
Finish
26.22 mi13:04:592:58:566:506:17
6:10
-0:42

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

6:10 /mi

Average Pace

6:50 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:42

23% of race

Time at Steady Pace

2:18:14

77% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:27:2821:256:5421:25
6:54
#7014
10K
6.21 mi10:48:5542:526:5421:27
6:54
#7142
15K
9.32 mi11:10:131:04:106:5321:18
6:51
#6944
20K
12.43 mi11:32:271:26:246:5722:14
7:09
#7187
Half
13.11 mi11:37:071:31:046:574:40
6:50
#7158
25K
15.53 mi11:53:581:47:556:5716:51
6:57
#6904
30K
18.64 mi12:15:012:08:586:5521:03
6:47
#6100
20M
20.00 mi12:24:022:17:596:549:01
6:38
#5730
21M
21.00 mi12:30:562:24:536:546:54
6:54
#5435
35K
21.75 mi12:35:472:29:446:534:51
6:29
#5275
23M
23.00 mi12:44:092:38:066:528:22
6:41
#4992
24M
24.00 mi12:50:432:44:406:526:34
6:34
#4808
40K
24.85 mi12:56:202:50:176:515:37
6:34
#4625
25.2M
25.20 mi12:58:422:52:396:512:22
6:52
#4542
Finish
26.22 mi13:04:592:58:566:506:17
6:10
#4327
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7014630763076635(Top 23%)5973(Top 37%)5973(Top 250%)
10K6.21 mi3.10 mi7142-1286399-926399-927249(Top 26%)6471(Top 40%)6471(Top 271%)
15K9.32 mi3.11 mi6944+1986239+1606239+1606635(Top 23%)5973(Top 37%)5973(Top 250%)
20K12.43 mi3.11 mi7187-2436410-1716410-1717852(Top 28%)6775(Top 42%)6775(Top 284%)
Half13.11 mi0.68 mi7158+296386+246386+246467(Top 23%)5807(Top 36%)5807(Top 243%)
25K15.53 mi2.42 mi6904+2546181+2056181+2055979(Top 21%)5383(Top 33%)5383(Top 226%)
30K18.64 mi3.11 mi6100+8045506+6755506+6753308(Top 12%)3096(Top 19%)3096(Top 130%)
20M20.00 mi1.36 mi5730+3705214+2925214+2922191(Top 8%)2072(Top 13%)2072(Top 87%)
21M21.00 mi1.00 mi5435+2954966+2484966+2481907(Top 7%)1798(Top 11%)1798(Top 75%)
35K21.75 mi0.75 mi5275+1604826+1404826+1402428(Top 9%)2271(Top 14%)2271(Top 95%)
23M23.00 mi1.25 mi4992+2834575+2514575+2512197(Top 8%)2054(Top 13%)2054(Top 86%)
24M24.00 mi1.00 mi4808+1844411+1644411+1642370(Top 8%)2195(Top 14%)2195(Top 92%)
40K24.85 mi0.85 mi4625+1834248+1634248+1631888(Top 7%)1742(Top 11%)1742(Top 73%)
25.2M25.20 mi0.35 mi4542+834170+784170+781178(Top 4%)1088(Top 7%)1088(Top 46%)
Finish26.22 mi1.02 mi4327+2153982+1883982+1881433(Top 5%)1336(Top 8%)1336(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6635

Males

5973

M45-49

5973

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7249

Males

6471

M45-49

6471

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6635

Males

5973

M45-49

5973

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7852

Males

6775

M45-49

6775

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6467

Males

5807

M45-49

5807

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5979

Males

5383

M45-49

5383

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3308

Males

3096

M45-49

3096

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2191

Males

2072

M45-49

2072

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1907

Males

1798

M45-49

1798

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2428

Males

2271

M45-49

2271

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2197

Males

2054

M45-49

2054

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2370

Males

2195

M45-49

2195

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1888

Males

1742

M45-49

1742

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1178

Males

1088

M45-49

1088

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1433

Males

1336

M45-49

1336

Passing Analysis

Category:
Athletes Passed
3353
Passed By
666
Net Change
+2687
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7014
5K → 10K144272-128#7014#7142
10K → 15K24749+198#7142#6944
15K → 20K77320-243#6944#7187
20K → Half378+29#7187#7158
Half → 25K26410+254#7158#6904
25K → 30K8040+804#6904#6100
30K → 20M3700+370#6100#5730
20M → 21M2950+295#5730#5435
21M → 35K1611+160#5435#5275
35K → 23M2830+283#5275#4992
23M → 24M1862+184#4992#4808
24M → 40K1841+183#4808#4625
40K → 25.2M841+83#4625#4542
25.2M → Finish2172+215#4542#4327
TOTALS3353666+2687
📊

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