Boston Marathon logo
BOSTON MARATHON 2025

Oliver Frommenwiler

Bib: 31165•M

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

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
9:28/mi
29:24
↑ 97↓ 3451.5%
10K· 6.21 mi
9:32/mi
59:01
↑ 79↓ 1380.4%
15K· 9.32 mi
9:15/mi
1:27:44
↑ 67↓ 78
20K· 12.43 mi
9:19/mi
1:56:41
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
2:02:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:39/mi
2:26:18
↑ 66↓ 880.2%
30K· 18.64 mi
9:51/mi
2:56:54
↑ 181↓ 1480.2%
20M
9:58/mi
3:10:27
↑ 64↓ 500.2%
21M
10:58/mi
3:21:25
↑ 106↓ 241.6%
35K· 21.75 mi
9:59/mi
3:28:53
↑ 17↓ 861.7%
23M
10:23/mi
3:41:53
↑ 23↓ 630.6%
24M
9:45/mi
3:51:38
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:59:29
↓ 200.3%
25.2M
10:06/mi
4:02:58
↑ 13↓ 160.2%
Finish· 26.22 mi
10:01/mi
4:13:10
↑ 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
Time2:02:55
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:10:15
Pace9:56 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3029:249:2829:24
9:28
-
10K
6.21 mi12:22:0759:019:3029:37
9:32
+0:04
15K
9.32 mi12:50:501:27:449:2528:43
9:15
-0:17
20K
12.43 mi13:19:471:56:419:2328:57
9:19
+0:04
Half
13.11 mi13:26:012:02:559:236:14
9:08
-0:11
25K
15.53 mi13:49:242:26:189:2523:23
9:39
+0:31
30K
18.64 mi14:20:002:56:549:2930:36
9:51
+0:12
20M
20.00 mi14:33:333:10:279:3113:33
9:58
+0:07
21M
21.00 mi14:44:313:21:259:3510:58
10:58
+1:00
35K
21.75 mi14:51:593:28:539:367:28
9:59
-0:59
23M
23.00 mi15:04:593:41:539:3913:00
10:23
+0:24
24M
24.00 mi15:14:443:51:389:399:45
9:45
-0:38
40K
24.85 mi15:22:353:59:299:387:51
9:11
-0:34
25.2M
25.20 mi15:26:044:02:589:383:29
10:06
+0:55
Finish
26.22 mi15:36:164:13:109:4010:12
10:01
-0:05

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

9:08 /mi

Average Pace

9:40 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:09

40% of race

Time at Steady Pace

1:54:22

45% of race

Time at Slower Pace

37:39

15% of race

Average Pace: 9:39 /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 mi11:52:3029:249:2829:24
9:28
#24124
10K
6.21 mi12:22:0759:019:3029:37
9:32
#24169
15K
9.32 mi12:50:501:27:449:2528:43
9:15
#23786
20K
12.43 mi13:19:471:56:419:2328:57
9:19
#23427
Half
13.11 mi13:26:012:02:559:236:14
9:08
#23356
25K
15.53 mi13:49:242:26:189:2523:23
9:39
#23169
30K
18.64 mi14:20:002:56:549:2930:36
9:51
#22772
20M
20.00 mi14:33:333:10:279:3113:33
9:58
#22630
21M
21.00 mi14:44:313:21:259:3510:58
10:58
#22534
35K
21.75 mi14:51:593:28:539:367:28
9:59
#22499
23M
23.00 mi15:04:593:41:539:3913:00
10:23
#22435
24M
24.00 mi15:14:443:51:389:399:45
9:45
#22349
40K
24.85 mi15:22:353:59:299:387:51
9:11
#22195
25.2M
25.20 mi15:26:044:02:589:383:29
10:06
#22132
Finish
26.22 mi15:36:164:13:109:4010:12
10:01
#22134
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24124143011430123008(Top 81%)13839(Top 86%)13839(Top 693%)
10K6.21 mi3.10 mi24169-4514326-2514326-2524188(Top 85%)14328(Top 89%)14328(Top 718%)
15K9.32 mi3.11 mi23786+38314157+16914157+16923008(Top 81%)13839(Top 86%)13839(Top 693%)
20K12.43 mi3.11 mi23427+35914007+15014007+15022314(Top 79%)13495(Top 84%)13495(Top 676%)
Half13.11 mi0.68 mi23356+7113975+3213975+3222342(Top 79%)13479(Top 84%)13479(Top 675%)
25K15.53 mi2.42 mi23169+18713880+9513880+9522329(Top 79%)13435(Top 83%)13435(Top 673%)
30K18.64 mi3.11 mi22772+39713656+22413656+22421151(Top 74%)12781(Top 79%)12781(Top 640%)
20M20.00 mi1.36 mi22630+14213565+9113565+9120831(Top 73%)12513(Top 78%)12513(Top 627%)
21M21.00 mi1.00 mi22534+9613508+5713508+5721296(Top 75%)12643(Top 79%)12643(Top 633%)
35K21.75 mi0.75 mi22499+3513474+3413474+3421841(Top 77%)12828(Top 80%)12828(Top 643%)
23M23.00 mi1.25 mi22435+6413416+5813416+5821688(Top 76%)12723(Top 79%)12723(Top 637%)
24M24.00 mi1.00 mi22349+8613357+5913357+5920566(Top 72%)12142(Top 75%)12142(Top 608%)
40K24.85 mi0.85 mi22195+15413275+8213275+8217258(Top 61%)10498(Top 65%)10498(Top 526%)
25.2M25.20 mi0.35 mi22132+6313234+4113234+4117456(Top 61%)10596(Top 66%)10596(Top 531%)
Finish26.22 mi1.02 mi22134-213220+1413220+1422955(Top 81%)13250(Top 82%)13250(Top 664%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

23008

Males

13839

M50-54

13839

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

24188

Males

14328

M50-54

14328

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

23008

Males

13839

M50-54

13839

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22314

Males

13495

M50-54

13495

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22342

Males

13479

M50-54

13479

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22329

Males

13435

M50-54

13435

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21151

Males

12781

M50-54

12781

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20831

Males

12513

M50-54

12513

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21296

Males

12643

M50-54

12643

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

21841

Males

12828

M50-54

12828

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21688

Males

12723

M50-54

12723

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20566

Males

12142

M50-54

12142

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17258

Males

10498

M50-54

10498

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17456

Males

10596

M50-54

10596

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22955

Males

13250

M50-54

13250

Passing Analysis

Category:
Athletes Passed
2536
Passed By
546
Net Change
+1990
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24124
5K → 10K217262-45#24124#24169
10K → 15K40926+383#24169#23786
15K → 20K37718+359#23786#23427
20K → Half787+71#23427#23356
Half → 25K22134+187#23356#23169
25K → 30K41215+397#23169#22772
30K → 20M15614+142#22772#22630
20M → 21M12933+96#22630#22534
21M → 35K6328+35#22534#22499
35K → 23M9935+64#22499#22435
23M → 24M10519+86#22435#22349
24M → 40K1562+154#22349#22195
40K → 25.2M641+63#22195#22132
25.2M → Finish5052-2#22132#22134
TOTALS2536546+1990
📊

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