Boston Marathon logo
BOSTON MARATHON 2025

Frederick Viens

Bib: 3939•M

QC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:29
Rank: #2247
Start → 5K
19:29 | 6:16/mi
10K· 6.21 mi
39:14
Rank: #2512 (-265)
5K → 10K
19:45 | 6:21/mi
15K· 9.32 mi
58:25
Rank: #2185 (+327)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:17:50
Rank: #2066 (+119)
15K → 20K
19:25 | 6:15/mi
Half· 13.11 mi
1:22:00
Rank: #2029 (+37)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:37:04
Rank: #1930 (+99)
Half → 25K
15:04 | 6:13/mi
30K· 18.64 mi
1:56:47
Rank: #1782 (+148)
25K → 30K
19:43 | 6:21/mi
20M
2:05:43
Rank: #1766 (+16)
30K → 20M
8:56 | 6:34/mi
21M
2:12:41
Rank: #1750 (+16)
20M → 21M
6:58 | 6:58/mi
35K· 21.75 mi
2:17:22
Rank: #1723 (+27)
21M → 35K
4:41 | 6:16/mi
23M
2:25:27
Rank: #1654 (+69)
35K → 23M
8:05 | 6:27/mi
24M
2:31:39
Rank: #1577 (+77)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:37:02
Rank: #1527 (+50)
24M → 40K
5:23 | 6:18/mi
25.2M
2:39:29
Rank: #1524 (+3)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:45:48
Rank: #1505 (+19)
25.2M → Finish
6:19 | 6:12/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
Time1:22:00
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:23:48
Pace6:24 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1519:296:1619:29
6:16
-
10K
6.21 mi10:41:0039:146:1919:45
6:21
+0:05
15K
9.32 mi11:00:1158:256:1619:11
6:10
-0:11
20K
12.43 mi11:19:361:17:506:1619:25
6:15
+0:05
Half
13.11 mi11:23:461:22:006:154:10
6:06
-0:09
25K
15.53 mi11:38:501:37:046:1515:04
6:13
+0:07
30K
18.64 mi11:58:331:56:476:1619:43
6:21
+0:08
20M
20.00 mi12:07:292:05:436:178:56
6:34
+0:13
21M
21.00 mi12:14:272:12:416:196:58
6:58
+0:24
35K
21.75 mi12:19:082:17:226:194:41
6:16
-0:42
23M
23.00 mi12:27:132:25:276:198:05
6:27
+0:11
24M
24.00 mi12:33:252:31:396:196:12
6:12
-0:15
40K
24.85 mi12:38:482:37:026:195:23
6:18
+0:06
25.2M
25.20 mi12:41:152:39:296:202:27
7:06
+0:48
Finish
26.22 mi12:47:342:45:486:206:19
6:12
-0:54

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

6:06 /mi

Average Pace

6:20 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:23

94% of race

Time at Steady Pace

9:25

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:21:1519:296:1619:29
6:16
#2247
10K
6.21 mi10:41:0039:146:1919:45
6:21
#2512
15K
9.32 mi11:00:1158:256:1619:11
6:10
#2185
20K
12.43 mi11:19:361:17:506:1619:25
6:15
#2066
Half
13.11 mi11:23:461:22:006:154:10
6:06
#2029
25K
15.53 mi11:38:501:37:046:1515:04
6:13
#1930
30K
18.64 mi11:58:331:56:476:1619:43
6:21
#1782
20M
20.00 mi12:07:292:05:436:178:56
6:34
#1766
21M
21.00 mi12:14:272:12:416:196:58
6:58
#1750
35K
21.75 mi12:19:082:17:226:194:41
6:16
#1723
23M
23.00 mi12:27:132:25:276:198:05
6:27
#1654
24M
24.00 mi12:33:252:31:396:196:12
6:12
#1577
40K
24.85 mi12:38:482:37:026:195:23
6:18
#1527
25.2M
25.20 mi12:41:152:39:296:202:27
7:06
#1524
Finish
26.22 mi12:47:342:45:486:206:19
6:12
#1505
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2247214621461714(Top 6%)1627(Top 10%)1627(Top 29%)
10K6.21 mi3.10 mi2512-2652392-2462392-2462762(Top 10%)2630(Top 16%)2630(Top 47%)
15K9.32 mi3.11 mi2185+3272086+3062086+3061714(Top 6%)1627(Top 10%)1627(Top 29%)
20K12.43 mi3.11 mi2066+1191972+1141972+1141789(Top 6%)1700(Top 11%)1700(Top 30%)
Half13.11 mi0.68 mi2029+371937+351937+351558(Top 5%)1481(Top 9%)1481(Top 26%)
25K15.53 mi2.42 mi1930+991840+971840+971510(Top 5%)1435(Top 9%)1435(Top 25%)
30K18.64 mi3.11 mi1782+1481697+1431697+1431354(Top 5%)1279(Top 8%)1279(Top 23%)
20M20.00 mi1.36 mi1766+161678+191678+191900(Top 7%)1797(Top 11%)1797(Top 32%)
21M21.00 mi1.00 mi1750+161661+171661+172110(Top 7%)1975(Top 12%)1975(Top 35%)
35K21.75 mi0.75 mi1723+271633+281633+281448(Top 5%)1372(Top 9%)1372(Top 24%)
23M23.00 mi1.25 mi1654+691566+671566+671319(Top 5%)1240(Top 8%)1240(Top 22%)
24M24.00 mi1.00 mi1577+771491+751491+751027(Top 4%)966(Top 6%)966(Top 17%)
40K24.85 mi0.85 mi1527+501442+491442+49961(Top 3%)900(Top 6%)900(Top 16%)
25.2M25.20 mi0.35 mi1524+31440+21440+21772(Top 6%)1611(Top 10%)1611(Top 29%)
Finish26.22 mi1.02 mi1505+191422+181422+181505(Top 5%)1399(Top 9%)1399(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1714

Males

1627

M18-39

1627

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2762

Males

2630

M18-39

2630

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1714

Males

1627

M18-39

1627

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1789

Males

1700

M18-39

1700

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1558

Males

1481

M18-39

1481

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1510

Males

1435

M18-39

1435

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1354

Males

1279

M18-39

1279

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1900

Males

1797

M18-39

1797

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2110

Males

1975

M18-39

1975

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1448

Males

1372

M18-39

1372

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1319

Males

1240

M18-39

1240

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1027

Males

966

M18-39

966

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

961

Males

900

M18-39

900

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1772

Males

1611

M18-39

1611

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1505

Males

1399

M18-39

1399

Passing Analysis

Category:
Athletes Passed
1194
Passed By
452
Net Change
+742
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2247
5K → 10K31296-265#2247#2512
10K → 15K3281+327#2512#2185
15K → 20K13213+119#2185#2066
20K → Half392+37#2066#2029
Half → 25K1089+99#2029#1930
25K → 30K16820+148#1930#1782
30K → 20M4731+16#1782#1766
20M → 21M4428+16#1766#1750
21M → 35K336+27#1750#1723
35K → 23M7910+69#1723#1654
23M → 24M814+77#1654#1577
24M → 40K555+50#1577#1527
40K → 25.2M107+3#1527#1524
25.2M → Finish3920+19#1524#1505
TOTALS1194452+742
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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