Boston Marathon logo
BOSTON MARATHON 2025

Romain Chambard

Bib: 12023 M GB

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M45-49)
#0 / 2386
Top 27%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:55/mi
21:28
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:52/mi
42:48
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:51/mi
1:04:06
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:53/mi
1:25:28
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:47/mi
1:30:06
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:05/mi
1:47:16
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:13/mi
2:09:41
↑ 181↓ 1480.2%
138 ft elev
20M
7:24/mi
2:19:45
↑ 64↓ 500.2%
148 ft elev
21M
7:50/mi
2:27:35
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:10/mi
2:32:57
↑ 17↓ 861.7%
156 ft elev
23M
7:38/mi
2:42:30
↑ 23↓ 630.6%
116 ft elev
24M
7:21/mi
2:49:51
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:35/mi
2:56:20
↓ 200.3%
20 ft elev
25.2M
8:13/mi
2:59:10
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:18/mi
3:06:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:30:066:52 /mi⚡ faster
2nd Half
1:36:307:22 /mi+7.1%
Positive split — 7.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
21:286:553.11 mi21:28
6:55
-
10K
42:486:533.10 mi21:20
6:52
-0:03
15K
1:04:066:533.11 mi21:18
6:51
-0:01
20K
1:25:286:533.11 mi21:22
6:53
+0:02
Half(13.11 mi)
1:30:066:520.68 mi4:38
6:47
-0:06
25K
1:47:166:542.42 mi17:10
7:05
+0:18
30K
2:09:416:573.11 mi22:25
7:13
+0:08
20M
2:19:456:591.36 mi10:04
7:24
+0:11
21M
2:27:357:021.00 mi7:50
7:50
+0:26
35K
2:32:577:020.75 mi5:22
7:10
-0:40
23M
2:42:307:041.25 mi9:33
7:38
+0:28
24M
2:49:517:051.00 mi7:21
7:21
-0:17
40K
2:56:207:060.85 mi6:29
7:35
+0:14
25.2M
2:59:107:070.35 mi2:50
8:13
+0:38
Finish(26.22 mi)
3:06:367:071.02 mi7:26
7:18
-0:55
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:47 /mi

Average Pace

7:07 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:30:06

48% of race

Time at Steady Pace

1:09:48

37% of race

Time at Slower Pace

26:42

14% of race

Average Pace: 7:07 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi713063996399662759655965
10K3.10 mi7062+686339+606339+60698562636263
15K3.11 mi6880+1826186+1536186+153662759655965
20K3.11 mi6644+2365996+1905996+190601254455445
Half(13.11 mi)0.68 mi6613+315973+235973+23603554565456
25K2.42 mi6607+65953+205953+20683660016001
30K3.11 mi6375+2325734+2195734+219598252945294
20M1.36 mi6312+635669+655669+65640754605460
21M1.00 mi6257+555611+585611+58634952855285
35K0.75 mi6227+305575+365575+36639653105310
23M1.25 mi6216+115541+345541+34739657995799
24M1.00 mi6175+415496+455496+45668453315331
40K0.85 mi6156+195463+335463+33726455705570
25.2M0.35 mi6141+155442+215442+21706153515351
Finish(26.22 mi)1.02 mi6150-95425+175425+17769757265726

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6627

Males

5965

M45-49

5965

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6985

Males

6263

M45-49

6263

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6627

Males

5965

M45-49

5965

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

6012

Males

5445

M45-49

5445

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

6035

Males

5456

M45-49

5456

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6836

Males

6001

M45-49

6001

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5982

Males

5294

M45-49

5294

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6407

Males

5460

M45-49

5460

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6349

Males

5285

M45-49

5285

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6396

Males

5310

M45-49

5310

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7396

Males

5799

M45-49

5799

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6684

Males

5331

M45-49

5331

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7264

Males

5570

M45-49

5570

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7061

Males

5351

M45-49

5351

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7697

Males

5726

M45-49

5726

Passing Analysis

Category:
Passed
1801
Passed By
821
Net Change
+980
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7130
5K → 10K240172+68#7130#7062
10K → 15K23856+182#7062#6880
15K → 20K27135+236#6880#6644
20K → Half4615+31#6644#6613
Half → 25K126120+6#6613#6607
25K → 30K29563+232#6607#6375
30K → 20M11754+63#6375#6312
20M → 21M9136+55#6312#6257
21M → 35K5424+30#6257#6227
35K → 23M8170+11#6227#6216
23M → 24M8544+41#6216#6175
24M → 40K6243+19#6175#6156
40K → 25.2M3217+15#6156#6141
25.2M → Finish6372-9#6141#6150
TOTALS1801821+980

Passing Charts

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