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BOSTON MARATHON 2025

Thomas Byrne

Bib: 7753•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Masters (Masters Men)
#0 / 10463
Top 12%
Division (M40-44)
#0 / 2247
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #5732
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:21
Rank: #4970 (+762)
5K → 10K
20:26 | 6:35/mi
15K· 9.32 mi
1:01:37
Rank: #4482 (+488)
10K → 15K
20:16 | 6:31/mi
20K· 12.43 mi
1:21:55
Rank: #4102 (+380)
15K → 20K
20:18 | 6:32/mi
Half· 13.11 mi
1:26:16
Rank: #4026 (+76)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:42:20
Rank: #3918 (+108)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:03:29
Rank: #3785 (+133)
25K → 30K
21:09 | 6:48/mi
20M
2:12:59
Rank: #3762 (+23)
30K → 20M
9:30 | 6:59/mi
21M
2:20:24
Rank: #3761 (+1)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:25:30
Rank: #3768 (-7)
21M → 35K
5:06 | 6:49/mi
23M
2:35:17
Rank: #4031 (-263)
35K → 23M
9:47 | 7:49/mi
24M
2:42:40
Rank: #4140 (-109)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
2:49:10
Rank: #4268 (-128)
24M → 40K
6:30 | 7:36/mi
25.2M
2:52:04
Rank: #4336 (-68)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
2:59:42
Rank: #4599 (-263)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:16
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:33:26
Pace7:08 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4220:556:4420:55
6:44
-
10K
6.21 mi10:49:0841:216:3920:26
6:35
-0:09
15K
9.32 mi11:09:241:01:376:3720:16
6:31
-0:04
20K
12.43 mi11:29:421:21:556:3520:18
6:32
+0:01
Half
13.11 mi11:34:031:26:166:354:21
6:23
-0:09
25K
15.53 mi11:50:071:42:206:3516:04
6:38
+0:15
30K
18.64 mi12:11:162:03:296:3721:09
6:48
+0:10
20M
20.00 mi12:20:462:12:596:399:30
6:59
+0:11
21M
21.00 mi12:28:112:20:246:417:25
7:25
+0:26
35K
21.75 mi12:33:172:25:306:415:06
6:49
-0:36
23M
23.00 mi12:43:042:35:176:459:47
7:49
+1:00
24M
24.00 mi12:50:272:42:406:477:23
7:23
-0:26
40K
24.85 mi12:56:572:49:106:486:30
7:36
+0:13
25.2M
25.20 mi12:59:512:52:046:502:54
8:25
+0:49
Finish
26.22 mi13:07:292:59:426:527:38
7:29
-0:56

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

6:23 /mi

Average Pace

6:52 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:55

25% of race

Time at Steady Pace

1:33:10

52% of race

Time at Slower Pace

41:37

23% of race

Average Pace: 6:51 /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 mi10:28:4220:556:4420:55
6:44
#5732
10K
6.21 mi10:49:0841:216:3920:26
6:35
#4970
15K
9.32 mi11:09:241:01:376:3720:16
6:31
#4482
20K
12.43 mi11:29:421:21:556:3520:18
6:32
#4102
Half
13.11 mi11:34:031:26:166:354:21
6:23
#4026
25K
15.53 mi11:50:071:42:206:3516:04
6:38
#3918
30K
18.64 mi12:11:162:03:296:3721:09
6:48
#3785
20M
20.00 mi12:20:462:12:596:399:30
6:59
#3762
21M
21.00 mi12:28:112:20:246:417:25
7:25
#3761
35K
21.75 mi12:33:172:25:306:415:06
6:49
#3768
23M
23.00 mi12:43:042:35:176:459:47
7:49
#4031
24M
24.00 mi12:50:272:42:406:477:23
7:23
#4140
40K
24.85 mi12:56:572:49:106:486:30
7:36
#4268
25.2M
25.20 mi12:59:512:52:046:502:54
8:25
#4336
Finish
26.22 mi13:07:292:59:426:527:38
7:29
#4599
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5732529452943716(Top 13%)3509(Top 22%)3509(Top 156%)
10K6.21 mi3.10 mi4970+7624636+6584636+6584287(Top 15%)4029(Top 25%)4029(Top 179%)
15K9.32 mi3.11 mi4482+4884212+4244212+4243716(Top 13%)3509(Top 22%)3509(Top 156%)
20K12.43 mi3.11 mi4102+3803859+3533859+3533327(Top 12%)3152(Top 20%)3152(Top 140%)
Half13.11 mi0.68 mi4026+763790+693790+692986(Top 11%)2853(Top 18%)2853(Top 127%)
25K15.53 mi2.42 mi3918+1083692+983692+983647(Top 13%)3434(Top 21%)3434(Top 153%)
30K18.64 mi3.11 mi3785+1333568+1243568+1243503(Top 12%)3258(Top 20%)3258(Top 145%)
20M20.00 mi1.36 mi3762+233541+273541+274073(Top 14%)3733(Top 23%)3733(Top 166%)
21M21.00 mi1.00 mi3761+13536+53536+54214(Top 15%)3793(Top 24%)3793(Top 169%)
35K21.75 mi0.75 mi3768-73541-53541-54243(Top 15%)3796(Top 24%)3796(Top 169%)
23M23.00 mi1.25 mi4031-2633753-2123753-2128654(Top 30%)6520(Top 40%)6520(Top 290%)
24M24.00 mi1.00 mi4140-1093841-883841-886918(Top 24%)5471(Top 34%)5471(Top 243%)
40K24.85 mi0.85 mi4268-1283938-973938-977405(Top 26%)5663(Top 35%)5663(Top 252%)
25.2M25.20 mi0.35 mi4336-683995-573995-578161(Top 29%)5985(Top 37%)5985(Top 266%)
Finish26.22 mi1.02 mi4599-2634217-2224217-2229080(Top 32%)6474(Top 40%)6474(Top 288%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3716

Males

3509

M40-44

3509

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4287

Males

4029

M40-44

4029

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3716

Males

3509

M40-44

3509

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3327

Males

3152

M40-44

3152

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2986

Males

2853

M40-44

2853

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3647

Males

3434

M40-44

3434

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3503

Males

3258

M40-44

3258

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4073

Males

3733

M40-44

3733

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4214

Males

3793

M40-44

3793

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4243

Males

3796

M40-44

3796

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8654

Males

6520

M40-44

6520

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6918

Males

5471

M40-44

5471

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7405

Males

5663

M40-44

5663

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8161

Males

5985

M40-44

5985

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9080

Males

6474

M40-44

6474

Passing Analysis

Category:
Athletes Passed
2280
Passed By
1147
Net Change
+1133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5732
5K → 10K77917+762#5732#4970
10K → 15K4891+488#4970#4482
15K → 20K3844+380#4482#4102
20K → Half782+76#4102#4026
Half → 25K12820+108#4026#3918
25K → 30K17744+133#3918#3785
30K → 20M7653+23#3785#3762
20M → 21M5655+1#3762#3761
21M → 35K2633-7#3761#3768
35K → 23M28291-263#3768#4031
23M → 24M27136-109#4031#4140
24M → 40K17145-128#4140#4268
40K → 25.2M1179-68#4268#4336
25.2M → Finish4267-263#4336#4599
TOTALS22801147+1133
📊

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