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BOSTON MARATHON 2025

Olivier Sirois

Bib: 2075•M

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:38
Rank: #1082
Start → 5K
18:38 | 6:00/mi
10K· 6.21 mi
37:31
Rank: #1187 (-105)
5K → 10K
18:53 | 6:05/mi
15K· 9.32 mi
56:41
Rank: #1323 (-136)
10K → 15K
19:10 | 6:10/mi
20K· 12.43 mi
1:16:04
Rank: #1411 (-88)
15K → 20K
19:23 | 6:14/mi
Half· 13.11 mi
1:20:16
Rank: #1429 (-18)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:35:25
Rank: #1441 (-12)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:55:39
Rank: #1505 (-64)
25K → 30K
20:14 | 6:31/mi
20M
2:04:44
Rank: #1539 (-34)
30K → 20M
9:05 | 6:41/mi
21M
2:11:50
Rank: #1576 (-37)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:16:46
Rank: #1607 (-31)
21M → 35K
4:56 | 6:36/mi
23M
2:27:18
Rank: #2040 (-433)
35K → 23M
10:32 | 8:25/mi
24M
2:37:54
Rank: #2883 (-843)
23M → 24M
10:36 | 10:36/mi
40K· 24.85 mi
2:46:34
Rank: #3525 (-642)
24M → 40K
8:40 | 10:08/mi
25.2M
2:50:06
Rank: #3778 (-253)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
2:58:04
Rank: #4053 (-275)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:16
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:37:48
Pace7:28 /mi
📊Positive Split: 21.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0718:386:0018:38
6:00
-
10K
6.21 mi10:38:0037:316:0218:53
6:05
+0:05
15K
9.32 mi10:57:1056:416:0519:10
6:10
+0:05
20K
12.43 mi11:16:331:16:046:0719:23
6:14
+0:04
Half
13.11 mi11:20:451:20:166:074:12
6:09
-0:05
25K
15.53 mi11:35:541:35:256:0915:09
6:15
+0:06
30K
18.64 mi11:56:081:55:396:1220:14
6:31
+0:16
20M
20.00 mi12:05:132:04:446:149:05
6:41
+0:10
21M
21.00 mi12:12:192:11:506:177:06
7:06
+0:25
35K
21.75 mi12:17:152:16:466:174:56
6:36
-0:30
23M
23.00 mi12:27:472:27:186:2410:32
8:25
+1:49
24M
24.00 mi12:38:232:37:546:3510:36
10:36
+2:11
40K
24.85 mi12:47:032:46:346:428:40
10:08
-0:28
25.2M
25.20 mi12:50:352:50:066:453:32
10:15
+0:07
Finish
26.22 mi12:58:332:58:046:487:58
7:49
-2:26

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

6:00 /mi

Average Pace

6:48 /mi

Slowest Pace

10:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:16:46

77% of race

Time at Slower Pace

41:18

23% of race

Average Pace: 6:47 /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 mi10:19:0718:386:0018:38
6:00
#1082
10K
6.21 mi10:38:0037:316:0218:53
6:05
#1187
15K
9.32 mi10:57:1056:416:0519:10
6:10
#1323
20K
12.43 mi11:16:331:16:046:0719:23
6:14
#1411
Half
13.11 mi11:20:451:20:166:074:12
6:09
#1429
25K
15.53 mi11:35:541:35:256:0915:09
6:15
#1441
30K
18.64 mi11:56:081:55:396:1220:14
6:31
#1505
20M
20.00 mi12:05:132:04:446:149:05
6:41
#1539
21M
21.00 mi12:12:192:11:506:177:06
7:06
#1576
35K
21.75 mi12:17:152:16:466:174:56
6:36
#1607
23M
23.00 mi12:27:472:27:186:2410:32
8:25
#2040
24M
24.00 mi12:38:232:37:546:3510:36
10:36
#2883
40K
24.85 mi12:47:032:46:346:428:40
10:08
#3525
25.2M
25.20 mi12:50:352:50:066:453:32
10:15
#3778
Finish
26.22 mi12:58:332:58:046:487:58
7:49
#4053
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1082102310231696(Top 6%)1610(Top 10%)1610(Top 29%)
10K6.21 mi3.10 mi1187-1051124-1011124-1011396(Top 5%)1325(Top 8%)1325(Top 23%)
15K9.32 mi3.11 mi1323-1361258-1341258-1341696(Top 6%)1610(Top 10%)1610(Top 29%)
20K12.43 mi3.11 mi1411-881339-811339-811747(Top 6%)1661(Top 10%)1661(Top 29%)
Half13.11 mi0.68 mi1429-181356-171356-171777(Top 6%)1693(Top 11%)1693(Top 30%)
25K15.53 mi2.42 mi1441-121369-131369-131646(Top 6%)1566(Top 10%)1566(Top 28%)
30K18.64 mi3.11 mi1505-641425-561425-562031(Top 7%)1931(Top 12%)1931(Top 34%)
20M20.00 mi1.36 mi1539-341458-331458-332393(Top 8%)2260(Top 14%)2260(Top 40%)
21M21.00 mi1.00 mi1576-371493-351493-352671(Top 9%)2481(Top 15%)2481(Top 44%)
35K21.75 mi0.75 mi1607-311523-301523-302921(Top 10%)2693(Top 17%)2693(Top 48%)
23M23.00 mi1.25 mi2040-4331939-4161939-41612742(Top 45%)8569(Top 53%)8569(Top 152%)
24M24.00 mi1.00 mi2883-8432728-7892728-78923053(Top 81%)13324(Top 83%)13324(Top 236%)
40K24.85 mi0.85 mi3525-6423300-5723300-57220871(Top 73%)12214(Top 76%)12214(Top 216%)
25.2M25.20 mi0.35 mi3778-2533516-2163516-21617981(Top 63%)10781(Top 67%)10781(Top 191%)
Finish26.22 mi1.02 mi4053-2753744-2283744-22811512(Top 41%)7757(Top 48%)7757(Top 137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1696

Males

1610

M18-39

1610

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1396

Males

1325

M18-39

1325

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1696

Males

1610

M18-39

1610

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1747

Males

1661

M18-39

1661

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1777

Males

1693

M18-39

1693

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1646

Males

1566

M18-39

1566

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

2031

Males

1931

M18-39

1931

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2393

Males

2260

M18-39

2260

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2671

Males

2481

M18-39

2481

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2921

Males

2693

M18-39

2693

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12742

Males

8569

M18-39

8569

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23053

Males

13324

M18-39

13324

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20871

Males

12214

M18-39

12214

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17981

Males

10781

M18-39

10781

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11512

Males

7757

M18-39

7757

Passing Analysis

Category:
Athletes Passed
223
Passed By
3194
Net Change
-2971
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1082
5K → 10K23128-105#1082#1187
10K → 15K10146-136#1187#1323
15K → 20K28116-88#1323#1411
20K → Half119-18#1411#1429
Half → 25K4254-12#1429#1441
25K → 30K39103-64#1441#1505
30K → 20M2660-34#1505#1539
20M → 21M2259-37#1539#1576
21M → 35K1445-31#1576#1607
35K → 23M4437-433#1607#2040
23M → 24M3846-843#2040#2883
24M → 40K2644-642#2883#3525
40K → 25.2M2255-253#3525#3778
25.2M → Finish7282-275#3778#4053
TOTALS2233194-2971
📊

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