Boston Marathon logo
BOSTON MARATHON 2025

Bastien Greco

Bib: 1019•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:45
Rank: #1190
Start → 5K
18:45 | 6:02/mi
10K· 6.21 mi
37:33
Rank: #1211 (-21)
5K → 10K
18:48 | 6:03/mi
15K· 9.32 mi
56:26
Rank: #1223 (-12)
10K → 15K
18:53 | 6:05/mi
20K· 12.43 mi
1:15:52
Rank: #1345 (-122)
15K → 20K
19:26 | 6:15/mi
Half· 13.11 mi
1:20:09
Rank: #1395 (-50)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:35:37
Rank: #1491 (-96)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
1:57:46
Rank: #2027 (-536)
25K → 30K
22:09 | 7:08/mi
20M
2:07:54
Rank: #2292 (-265)
30K → 20M
10:08 | 7:27/mi
21M
2:15:35
Rank: #2420 (-128)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:20:59
Rank: #2542 (-122)
21M → 35K
5:24 | 7:13/mi
23M
2:31:36
Rank: #2991 (-449)
35K → 23M
10:37 | 8:29/mi
24M
2:39:12
Rank: #3183 (-192)
23M → 24M
7:36 | 7:36/mi
40K· 24.85 mi
2:45:59
Rank: #3375 (-192)
24M → 40K
6:47 | 7:56/mi
25.2M
2:49:06
Rank: #3484 (-109)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
2:55:58
Rank: #3476 (+8)
25.2M → Finish
6:52 | 6:44/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
Time1:20:09
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:35:49
Pace7:19 /mi
📊Positive Split: 19.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5118:456:0218:45
6:02
-
10K
6.21 mi10:37:3937:336:0318:48
6:03
+0:01
15K
9.32 mi10:56:3256:266:0318:53
6:05
+0:02
20K
12.43 mi11:15:581:15:526:0619:26
6:15
+0:10
Half
13.11 mi11:20:151:20:096:074:17
6:17
+0:02
25K
15.53 mi11:35:431:35:376:0915:28
6:23
+0:06
30K
18.64 mi11:57:521:57:466:1922:09
7:08
+0:45
20M
20.00 mi12:08:002:07:546:2410:08
7:27
+0:19
21M
21.00 mi12:15:412:15:356:277:41
7:41
+0:14
35K
21.75 mi12:21:052:20:596:295:24
7:13
-0:28
23M
23.00 mi12:31:422:31:366:3510:37
8:29
+1:16
24M
24.00 mi12:39:182:39:126:387:36
7:36
-0:53
40K
24.85 mi12:46:052:45:596:416:47
7:56
+0:20
25.2M
25.20 mi12:49:122:49:066:433:07
9:02
+1:06
Finish
26.22 mi12:56:042:55:586:436:52
6:44
-2:18

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

6:02 /mi

Average Pace

6:43 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:37

54% of race

Time at Steady Pace

44:33

25% of race

Time at Slower Pace

35:48

20% of race

Average Pace: 6:43 /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 mi10:18:5118:456:0218:45
6:02
#1190
10K
6.21 mi10:37:3937:336:0318:48
6:03
#1211
15K
9.32 mi10:56:3256:266:0318:53
6:05
#1223
20K
12.43 mi11:15:581:15:526:0619:26
6:15
#1345
Half
13.11 mi11:20:151:20:096:074:17
6:17
#1395
25K
15.53 mi11:35:431:35:376:0915:28
6:23
#1491
30K
18.64 mi11:57:521:57:466:1922:09
7:08
#2027
20M
20.00 mi12:08:002:07:546:2410:08
7:27
#2292
21M
21.00 mi12:15:412:15:356:277:41
7:41
#2420
35K
21.75 mi12:21:052:20:596:295:24
7:13
#2542
23M
23.00 mi12:31:422:31:366:3510:37
8:29
#2991
24M
24.00 mi12:39:182:39:126:387:36
7:36
#3183
40K
24.85 mi12:46:052:45:596:416:47
7:56
#3375
25.2M
25.20 mi12:49:122:49:066:433:07
9:02
#3484
Finish
26.22 mi12:56:042:55:586:436:52
6:44
#3476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1190112611261300(Top 5%)1235(Top 8%)1235(Top 22%)
10K6.21 mi3.10 mi1211-211148-221148-221289(Top 5%)1224(Top 8%)1224(Top 22%)
15K9.32 mi3.11 mi1223-121160-121160-121300(Top 5%)1235(Top 8%)1235(Top 22%)
20K12.43 mi3.11 mi1345-1221276-1161276-1161819(Top 6%)1730(Top 11%)1730(Top 31%)
Half13.11 mi0.68 mi1395-501324-481324-482447(Top 9%)2344(Top 15%)2344(Top 42%)
25K15.53 mi2.42 mi1491-961412-881412-882269(Top 8%)2159(Top 13%)2159(Top 38%)
30K18.64 mi3.11 mi2027-5361931-5191931-5195486(Top 19%)4926(Top 31%)4926(Top 87%)
20M20.00 mi1.36 mi2292-2652187-2562187-2566714(Top 24%)5655(Top 35%)5655(Top 100%)
21M21.00 mi1.00 mi2420-1282307-1202307-1205555(Top 20%)4765(Top 30%)4765(Top 84%)
35K21.75 mi0.75 mi2542-1222421-1142421-1146692(Top 24%)5511(Top 34%)5511(Top 98%)
23M23.00 mi1.25 mi2991-4492829-4082829-40813149(Top 46%)8759(Top 54%)8759(Top 155%)
24M24.00 mi1.00 mi3183-1923004-1753004-1758384(Top 30%)6313(Top 39%)6313(Top 112%)
40K24.85 mi0.85 mi3375-1923172-1683172-1689658(Top 34%)6868(Top 43%)6868(Top 122%)
25.2M25.20 mi0.35 mi3484-1093260-883260-8811908(Top 42%)7919(Top 49%)7919(Top 140%)
Finish26.22 mi1.02 mi3476+83247+133247+134127(Top 15%)3530(Top 22%)3530(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1300

Males

1235

M18-39

1235

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1289

Males

1224

M18-39

1224

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1300

Males

1235

M18-39

1235

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1819

Males

1730

M18-39

1730

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2447

Males

2344

M18-39

2344

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2269

Males

2159

M18-39

2159

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5486

Males

4926

M18-39

4926

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6714

Males

5655

M18-39

5655

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5555

Males

4765

M18-39

4765

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6692

Males

5511

M18-39

5511

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

13149

Males

8759

M18-39

8759

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8384

Males

6313

M18-39

6313

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9658

Males

6868

M18-39

6868

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11908

Males

7919

M18-39

7919

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4127

Males

3530

M18-39

3530

Passing Analysis

Category:
Athletes Passed
249
Passed By
2535
Net Change
-2286
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1190
5K → 10K5879-21#1190#1211
10K → 15K3648-12#1211#1223
15K → 20K15137-122#1223#1345
20K → Half151-50#1345#1395
Half → 25K20116-96#1395#1491
25K → 30K3539-536#1491#2027
30K → 20M8273-265#2027#2292
20M → 21M15143-128#2292#2420
21M → 35K13135-122#2420#2542
35K → 23M8457-449#2542#2991
23M → 24M10202-192#2991#3183
24M → 40K10202-192#3183#3375
40K → 25.2M7116-109#3375#3484
25.2M → Finish4537+8#3484#3476
TOTALS2492535-2286
📊

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