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BOSTON MARATHON 2025

Thibault Gdalia

Bib: 3806•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:14/mi
19:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:14/mi
38:44
↑ 79↓ 1380.4%
15K· 9.32 mi
6:21/mi
58:27
↑ 67↓ 78
20K· 12.43 mi
6:25/mi
1:18:23
↑ 106↓ 860.1%
Half· 13.11 mi
6:18/mi
1:22:41
↑ 19↓ 370.5%
25K· 15.53 mi
6:28/mi
1:38:21
↑ 66↓ 880.2%
30K· 18.64 mi
6:37/mi
1:58:55
↑ 181↓ 1480.2%
20M
6:40/mi
2:07:58
↑ 64↓ 500.2%
21M
7:00/mi
2:14:58
↑ 106↓ 241.6%
35K· 21.75 mi
6:30/mi
2:19:50
↑ 17↓ 861.7%
23M
6:47/mi
2:28:19
↑ 23↓ 630.6%
24M
6:39/mi
2:34:58
↓ 821.3%
40K· 24.85 mi
6:55/mi
2:40:53
↓ 200.3%
25.2M
8:04/mi
2:43:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:16/mi
2:51:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:41
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:28:23
Pace6:45 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0119:226:1419:22
6:14
-
10K
6.21 mi10:41:2338:446:1419:22
6:14
0:00
15K
9.32 mi11:01:0658:276:1619:43
6:21
+0:07
20K
12.43 mi11:21:021:18:236:1819:56
6:25
+0:04
Half
13.11 mi11:25:201:22:416:184:18
6:18
-0:07
25K
15.53 mi11:41:001:38:216:2015:40
6:28
+0:10
30K
18.64 mi12:01:341:58:556:2320:34
6:37
+0:09
20M
20.00 mi12:10:372:07:586:249:03
6:40
+0:03
21M
21.00 mi12:17:372:14:586:267:00
7:00
+0:20
35K
21.75 mi12:22:292:19:506:264:52
6:30
-0:30
23M
23.00 mi12:30:582:28:196:278:29
6:47
+0:17
24M
24.00 mi12:37:372:34:586:276:39
6:39
-0:08
40K
24.85 mi12:43:322:40:536:285:55
6:55
+0:16
25.2M
25.20 mi12:46:192:43:406:302:47
8:04
+1:09
Finish
26.22 mi12:53:432:51:046:327:24
7:16
-0:48

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

6:14 /mi

Average Pace

6:32 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:45

37% of race

Time at Steady Pace

1:25:13

50% of race

Time at Slower Pace

23:06

14% of race

Average Pace: 6:31 /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 mi10:22:0119:226:1419:22
6:14
#2061
10K
6.21 mi10:41:2338:446:1419:22
6:14
#2050
15K
9.32 mi11:01:0658:276:1619:43
6:21
#2208
20K
12.43 mi11:21:021:18:236:1819:56
6:25
#2299
Half
13.11 mi11:25:201:22:416:184:18
6:18
#2301
25K
15.53 mi11:41:001:38:216:2015:40
6:28
#2354
30K
18.64 mi12:01:341:58:556:2320:34
6:37
#2335
20M
20.00 mi12:10:372:07:586:249:03
6:40
#2313
21M
21.00 mi12:17:372:14:586:267:00
7:00
#2280
35K
21.75 mi12:22:292:19:506:264:52
6:30
#2272
23M
23.00 mi12:30:582:28:196:278:29
6:47
#2254
24M
24.00 mi12:37:372:34:586:276:39
6:39
#2253
40K
24.85 mi12:43:322:40:536:285:55
6:55
#2276
25.2M
25.20 mi12:46:192:43:406:302:47
8:04
#2316
Finish
26.22 mi12:53:432:51:046:327:24
7:16
#2452
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2061196319632622(Top 9%)2502(Top 16%)2502(Top 44%)
10K6.21 mi3.10 mi2050+111955+81955+82073(Top 7%)1976(Top 12%)1976(Top 35%)
15K9.32 mi3.11 mi2208-1582108-1532108-1532622(Top 9%)2502(Top 16%)2502(Top 44%)
20K12.43 mi3.11 mi2299-912195-872195-872619(Top 9%)2496(Top 15%)2496(Top 44%)
Half13.11 mi0.68 mi2301-22196-12196-12562(Top 9%)2451(Top 15%)2451(Top 43%)
25K15.53 mi2.42 mi2354-532246-502246-502689(Top 9%)2557(Top 16%)2557(Top 45%)
30K18.64 mi3.11 mi2335+192229+172229+172500(Top 9%)2368(Top 15%)2368(Top 42%)
20M20.00 mi1.36 mi2313+222207+222207+222295(Top 8%)2169(Top 13%)2169(Top 38%)
21M21.00 mi1.00 mi2280+332174+332174+332265(Top 8%)2116(Top 13%)2116(Top 38%)
35K21.75 mi0.75 mi2272+82164+102164+102499(Top 9%)2332(Top 14%)2332(Top 41%)
23M23.00 mi1.25 mi2254+182146+182146+182592(Top 9%)2395(Top 15%)2395(Top 42%)
24M24.00 mi1.00 mi2253+12144+22144+22730(Top 10%)2504(Top 16%)2504(Top 44%)
40K24.85 mi0.85 mi2276-232163-192163-193468(Top 12%)3087(Top 19%)3087(Top 55%)
25.2M25.20 mi0.35 mi2316-402201-382201-386260(Top 22%)4893(Top 30%)4893(Top 87%)
Finish26.22 mi1.02 mi2452-1362324-1232324-1237458(Top 26%)5591(Top 35%)5591(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2622

Males

2502

M18-39

2502

5K→10K

3.1 - 6.2 mi

Top 7%
×5story building
+79ft-138ft

Overall

2073

Males

1976

M18-39

1976

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2622

Males

2502

M18-39

2502

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2619

Males

2496

M18-39

2496

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2562

Males

2451

M18-39

2451

Half→25K

13.1 - 15.5 mi

Top 9%
×4story building
+66ft-88ft

Overall

2689

Males

2557

M18-39

2557

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2500

Males

2368

M18-39

2368

30K→20M

18.6 - 20.0 mi

Top 8%
×5story building
+64ft-50ft

Overall

2295

Males

2169

M18-39

2169

20M→21M

20.0 - 21.0 mi

Top 8%
×8story building
+106ft-24ft

Overall

2265

Males

2116

M18-39

2116

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2499

Males

2332

M18-39

2332

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2592

Males

2395

M18-39

2395

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2730

Males

2504

M18-39

2504

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3468

Males

3087

M18-39

3087

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6260

Males

4893

M18-39

4893

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

7458

Males

5591

M18-39

5591

Passing Analysis

Category:
Athletes Passed
593
Passed By
984
Net Change
-391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2061
5K → 10K121110+11#2061#2050
10K → 15K27185-158#2050#2208
15K → 20K42133-91#2208#2299
20K → Half1012-2#2299#2301
Half → 25K3689-53#2301#2354
25K → 30K9677+19#2354#2335
30K → 20M5028+22#2335#2313
20M → 21M5320+33#2313#2280
21M → 35K2517+8#2280#2272
35K → 23M4931+18#2272#2254
23M → 24M4241+1#2254#2253
24M → 40K3053-23#2253#2276
40K → 25.2M444-40#2276#2316
25.2M → Finish8144-136#2316#2452
TOTALS593984-391
📊

Passing Visuals

Category:
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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