Boston Marathon logo
BOSTON MARATHON 2025

Dan Sobrinski

Bib: 1657•M

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 11%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M45-49)
#0 / 2386
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:06
Rank: #1609
Start → 5K
19:06 | 6:09/mi
10K· 6.21 mi
38:10
Rank: #1603 (+6)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:22
Rank: #1631 (-28)
10K → 15K
19:12 | 6:11/mi
20K· 12.43 mi
1:16:47
Rank: #1671 (-40)
15K → 20K
19:25 | 6:15/mi
Half· 13.11 mi
1:20:58
Rank: #1663 (+8)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:36:08
Rank: #1640 (+23)
Half → 25K
15:10 | 6:15/mi
30K· 18.64 mi
1:55:59
Rank: #1593 (+47)
25K → 30K
19:51 | 6:23/mi
20M
2:04:50
Rank: #1566 (+27)
30K → 20M
8:51 | 6:31/mi
21M
2:12:05
Rank: #1629 (-63)
20M → 21M
7:15 | 7:15/mi
35K· 21.75 mi
2:16:47
Rank: #1613 (+16)
21M → 35K
4:42 | 6:17/mi
23M
2:25:07
Rank: #1584 (+29)
35K → 23M
8:20 | 6:39/mi
24M
2:31:50
Rank: #1629 (-45)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:38:01
Rank: #1726 (-97)
24M → 40K
6:11 | 7:14/mi
25.2M
2:40:39
Rank: #1748 (-22)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:47:40
Rank: #1818 (-70)
25.2M → Finish
7:01 | 6:53/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
Time1:20:58
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:26:42
Pace6:37 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:066:0919:06
6:09
-
10K
6.21 mi10:38:5838:106:0919:04
6:08
-0:01
15K
9.32 mi10:58:1057:226:0919:12
6:11
+0:03
20K
12.43 mi11:17:351:16:476:1119:25
6:15
+0:04
Half
13.11 mi11:21:461:20:586:114:11
6:08
-0:07
25K
15.53 mi11:36:561:36:086:1115:10
6:15
+0:07
30K
18.64 mi11:56:471:55:596:1319:51
6:23
+0:08
20M
20.00 mi12:05:382:04:506:148:51
6:31
+0:08
21M
21.00 mi12:12:532:12:056:177:15
7:15
+0:44
35K
21.75 mi12:17:352:16:476:174:42
6:17
-0:58
23M
23.00 mi12:25:552:25:076:198:20
6:39
+0:22
24M
24.00 mi12:32:382:31:506:206:43
6:43
+0:04
40K
24.85 mi12:38:492:38:016:216:11
7:14
+0:31
25.2M
25.20 mi12:41:272:40:396:232:38
7:38
+0:24
Finish
26.22 mi12:48:282:47:406:247:01
6:53
-0:45

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

6:08 /mi

Average Pace

6:24 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:21

25% of race

Time at Steady Pace

1:27:11

52% of race

Time at Slower Pace

38:08

23% of race

Average Pace: 6:24 /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 mi10:19:5419:066:0919:06
6:09
#1609
10K
6.21 mi10:38:5838:106:0919:04
6:08
#1603
15K
9.32 mi10:58:1057:226:0919:12
6:11
#1631
20K
12.43 mi11:17:351:16:476:1119:25
6:15
#1671
Half
13.11 mi11:21:461:20:586:114:11
6:08
#1663
25K
15.53 mi11:36:561:36:086:1115:10
6:15
#1640
30K
18.64 mi11:56:471:55:596:1319:51
6:23
#1593
20M
20.00 mi12:05:382:04:506:148:51
6:31
#1566
21M
21.00 mi12:12:532:12:056:177:15
7:15
#1629
35K
21.75 mi12:17:352:16:476:174:42
6:17
#1613
23M
23.00 mi12:25:552:25:076:198:20
6:39
#1584
24M
24.00 mi12:32:382:31:506:206:43
6:43
#1629
40K
24.85 mi12:38:492:38:016:216:11
7:14
#1726
25.2M
25.20 mi12:41:272:40:396:232:38
7:38
#1748
Finish
26.22 mi12:48:282:47:406:247:01
6:53
#1818
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1609152815281760(Top 6%)1673(Top 10%)1673(Top 70%)
10K6.21 mi3.10 mi1603+61525+31525+31622(Top 6%)1544(Top 10%)1544(Top 65%)
15K9.32 mi3.11 mi1631-281552-271552-271760(Top 6%)1673(Top 10%)1673(Top 70%)
20K12.43 mi3.11 mi1671-401587-351587-351798(Top 6%)1709(Top 11%)1709(Top 72%)
Half13.11 mi0.68 mi1663+81578+91578+91695(Top 6%)1614(Top 10%)1614(Top 68%)
25K15.53 mi2.42 mi1640+231557+211557+211682(Top 6%)1599(Top 10%)1599(Top 67%)
30K18.64 mi3.11 mi1593+471510+471510+471517(Top 5%)1436(Top 9%)1436(Top 60%)
20M20.00 mi1.36 mi1566+271485+251485+251686(Top 6%)1594(Top 10%)1594(Top 67%)
21M21.00 mi1.00 mi1629-631544-591544-593378(Top 12%)3100(Top 19%)3100(Top 130%)
35K21.75 mi0.75 mi1613+161529+151529+151558(Top 5%)1468(Top 9%)1468(Top 62%)
23M23.00 mi1.25 mi1584+291500+291500+292065(Top 7%)1930(Top 12%)1930(Top 81%)
24M24.00 mi1.00 mi1629-451543-431543-433074(Top 11%)2787(Top 17%)2787(Top 117%)
40K24.85 mi0.85 mi1726-971635-921635-925207(Top 18%)4348(Top 27%)4348(Top 182%)
25.2M25.20 mi0.35 mi1748-221654-191654-194033(Top 14%)3449(Top 21%)3449(Top 145%)
Finish26.22 mi1.02 mi1818-701720-661720-664975(Top 18%)4090(Top 25%)4090(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1760

Males

1673

M45-49

1673

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1622

Males

1544

M45-49

1544

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1760

Males

1673

M45-49

1673

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1798

Males

1709

M45-49

1709

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1695

Males

1614

M45-49

1614

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1682

Males

1599

M45-49

1599

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1517

Males

1436

M45-49

1436

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1686

Males

1594

M45-49

1594

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3378

Males

3100

M45-49

3100

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1558

Males

1468

M45-49

1468

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2065

Males

1930

M45-49

1930

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3074

Males

2787

M45-49

2787

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5207

Males

4348

M45-49

4348

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4033

Males

3449

M45-49

3449

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4975

Males

4090

M45-49

4090

Passing Analysis

Category:
Athletes Passed
525
Passed By
734
Net Change
-209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1609
5K → 10K9084+6#1609#1603
10K → 15K4573-28#1603#1631
15K → 20K3575-40#1631#1671
20K → Half168+8#1671#1663
Half → 25K5229+23#1663#1640
25K → 30K9043+47#1640#1593
30K → 20M4215+27#1593#1566
20M → 21M2285-63#1566#1629
21M → 35K2711+16#1629#1613
35K → 23M5930+29#1613#1584
23M → 24M1964-45#1584#1629
24M → 40K5102-97#1629#1726
40K → 25.2M931-22#1726#1748
25.2M → Finish1484-70#1748#1818
TOTALS525734-209
📊

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