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BOSTON MARATHON 2025

Felix-Antoine Groulx

Bib: 4235•M

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:11
Rank: #1704
Start → 5K
19:11 | 6:10/mi
10K· 6.21 mi
38:15
Rank: #1652 (+52)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:13
Rank: #1568 (+84)
10K → 15K
18:58 | 6:06/mi
20K· 12.43 mi
1:16:12
Rank: #1452 (+116)
15K → 20K
18:59 | 6:07/mi
Half· 13.11 mi
1:20:18
Rank: #1434 (+18)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:35:03
Rank: #1346 (+88)
Half → 25K
14:45 | 6:05/mi
30K· 18.64 mi
1:54:12
Rank: #1214 (+132)
25K → 30K
19:09 | 6:10/mi
20M
2:02:33
Rank: #1141 (+73)
30K → 20M
8:21 | 6:09/mi
21M
2:08:56
Rank: #1062 (+79)
20M → 21M
6:23 | 6:23/mi
35K· 21.75 mi
2:13:31
Rank: #1049 (+13)
21M → 35K
4:35 | 6:08/mi
23M
2:21:22
Rank: #996 (+53)
35K → 23M
7:51 | 6:16/mi
24M
2:27:27
Rank: #974 (+22)
23M → 24M
6:05 | 6:05/mi
40K· 24.85 mi
2:32:42
Rank: #951 (+23)
24M → 40K
5:15 | 6:08/mi
25.2M
2:34:57
Rank: #927 (+24)
40K → 25.2M
2:15 | 6:31/mi
Finish· 26.22 mi
2:40:58
Rank: #899 (+28)
25.2M → Finish
6:01 | 5:54/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:20:18
Pace6:08 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:20:40
Pace6:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0119:116:1019:11
6:10
-
10K
6.21 mi10:40:0538:156:0919:04
6:08
-0:02
15K
9.32 mi10:59:0357:136:0818:58
6:06
-0:02
20K
12.43 mi11:18:021:16:126:0818:59
6:07
+0:01
Half
13.11 mi11:22:081:20:186:084:06
6:01
-0:06
25K
15.53 mi11:36:531:35:036:0714:45
6:05
+0:04
30K
18.64 mi11:56:021:54:126:0819:09
6:10
+0:05
20M
20.00 mi12:04:232:02:336:088:21
6:09
-0:01
21M
21.00 mi12:10:462:08:566:086:23
6:23
+0:14
35K
21.75 mi12:15:212:13:316:084:35
6:08
-0:15
23M
23.00 mi12:23:122:21:226:097:51
6:16
+0:08
24M
24.00 mi12:29:172:27:276:096:05
6:05
-0:11
40K
24.85 mi12:34:322:32:426:095:15
6:08
+0:03
25.2M
25.20 mi12:36:472:34:576:092:15
6:31
+0:23
Finish
26.22 mi12:42:482:40:586:096:01
5:54
-0:37

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

5:54 /mi

Average Pace

6:09 /mi

Slowest Pace

6:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:43

99% of race

Time at Steady Pace

2:15

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:21:0119:116:1019:11
6:10
#1704
10K
6.21 mi10:40:0538:156:0919:04
6:08
#1652
15K
9.32 mi10:59:0357:136:0818:58
6:06
#1568
20K
12.43 mi11:18:021:16:126:0818:59
6:07
#1452
Half
13.11 mi11:22:081:20:186:084:06
6:01
#1434
25K
15.53 mi11:36:531:35:036:0714:45
6:05
#1346
30K
18.64 mi11:56:021:54:126:0819:09
6:10
#1214
20M
20.00 mi12:04:232:02:336:088:21
6:09
#1141
21M
21.00 mi12:10:462:08:566:086:23
6:23
#1062
35K
21.75 mi12:15:212:13:316:084:35
6:08
#1049
23M
23.00 mi12:23:122:21:226:097:51
6:16
#996
24M
24.00 mi12:29:172:27:276:096:05
6:05
#974
40K
24.85 mi12:34:322:32:426:095:15
6:08
#951
25.2M
25.20 mi12:36:472:34:576:092:15
6:31
#927
Finish
26.22 mi12:42:482:40:586:096:01
5:54
#899
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1704161816181393(Top 5%)1325(Top 8%)1325(Top 23%)
10K6.21 mi3.10 mi1652+521572+461572+461606(Top 6%)1528(Top 9%)1528(Top 27%)
15K9.32 mi3.11 mi1568+841491+811491+811393(Top 5%)1325(Top 8%)1325(Top 23%)
20K12.43 mi3.11 mi1452+1161378+1131378+1131198(Top 4%)1133(Top 7%)1133(Top 20%)
Half13.11 mi0.68 mi1434+181360+181360+181157(Top 4%)1094(Top 7%)1094(Top 19%)
25K15.53 mi2.42 mi1346+881275+851275+851032(Top 4%)975(Top 6%)975(Top 17%)
30K18.64 mi3.11 mi1214+1321146+1291146+129826(Top 3%)773(Top 5%)773(Top 14%)
20M20.00 mi1.36 mi1141+731075+711075+71614(Top 2%)577(Top 4%)577(Top 10%)
21M21.00 mi1.00 mi1062+791000+751000+75500(Top 2%)471(Top 3%)471(Top 8%)
35K21.75 mi0.75 mi1049+13987+13987+131003(Top 4%)944(Top 6%)944(Top 17%)
23M23.00 mi1.25 mi996+53938+49938+49808(Top 3%)763(Top 5%)763(Top 14%)
24M24.00 mi1.00 mi974+22917+21917+21735(Top 3%)690(Top 4%)690(Top 12%)
40K24.85 mi0.85 mi951+23894+23894+23617(Top 2%)577(Top 4%)577(Top 10%)
25.2M25.20 mi0.35 mi927+24870+24870+24492(Top 2%)457(Top 3%)457(Top 8%)
Finish26.22 mi1.02 mi899+28842+28842+28689(Top 2%)649(Top 4%)649(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1393

Males

1325

M18-39

1325

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1606

Males

1528

M18-39

1528

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1393

Males

1325

M18-39

1325

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1198

Males

1133

M18-39

1133

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1157

Males

1094

M18-39

1094

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1032

Males

975

M18-39

975

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

826

Males

773

M18-39

773

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

614

Males

577

M18-39

577

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

500

Males

471

M18-39

471

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1003

Males

944

M18-39

944

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

808

Males

763

M18-39

763

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

735

Males

690

M18-39

690

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

617

Males

577

M18-39

577

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

492

Males

457

M18-39

457

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

689

Males

649

M18-39

649

Passing Analysis

Category:
Athletes Passed
927
Passed By
122
Net Change
+805
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1704
5K → 10K10957+52#1704#1652
10K → 15K10420+84#1652#1568
15K → 20K1226+116#1568#1452
20K → Half191+18#1452#1434
Half → 25K913+88#1434#1346
25K → 30K1331+132#1346#1214
30K → 20M741+73#1214#1141
20M → 21M812+79#1141#1062
21M → 35K2512+13#1062#1049
35K → 23M607+53#1049#996
23M → 24M275+22#996#974
24M → 40K263+23#974#951
40K → 25.2M240+24#951#927
25.2M → Finish324+28#927#899
TOTALS927122+805
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing