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BOSTON MARATHON 2025

Paul Byrne

Bib: 11651 M IE

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 41%
Division (M45-49)
#0 / 2386
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
7:17/mi
22:38
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:28/mi
45:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:27/mi
1:09:00
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:29/mi
1:32:14
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:26/mi
1:37:18
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:30/mi
1:55:30
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:56/mi
2:20:10
↑ 181↓ 1480.2%
138 ft elev
20M
8:15/mi
2:31:22
↑ 64↓ 500.2%
148 ft elev
21M
8:43/mi
2:40:05
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:59/mi
2:46:03
↑ 17↓ 861.7%
156 ft elev
23M
8:08/mi
2:56:14
↑ 23↓ 630.6%
116 ft elev
24M
8:02/mi
3:04:16
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:21/mi
3:11:24
↓ 200.3%
20 ft elev
25.2M
9:23/mi
3:14:38
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:14/mi
3:23:01
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:18
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:45:43
Pace8:04 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2922:387:1722:38
7:17
-
10K
6.21 mi11:12:4245:517:2323:13
7:28
+0:11
15K
9.32 mi11:35:511:09:007:2423:09
7:27
-0:01
20K
12.43 mi11:59:051:32:147:2523:14
7:29
+0:02
Half
13.11 mi12:04:091:37:187:255:04
7:26
-0:03
25K
15.53 mi12:22:211:55:307:2618:12
7:30
+0:04
30K
18.64 mi12:47:012:20:107:3124:40
7:56
+0:26
20M
20.00 mi12:58:132:31:227:3411:12
8:15
+0:19
21M
21.00 mi13:06:562:40:057:378:43
8:43
+0:28
35K
21.75 mi13:12:542:46:037:385:58
7:59
-0:44
23M
23.00 mi13:23:052:56:147:4010:11
8:08
+0:09
24M
24.00 mi13:31:073:04:167:418:02
8:02
-0:06
40K
24.85 mi13:38:153:11:247:427:08
8:21
+0:19
25.2M
25.20 mi13:41:293:14:387:433:14
9:23
+1:02
Finish
26.22 mi13:49:523:23:017:458:23
8:14
-1:09

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

7:17 /mi

Average Pace

7:45 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:30

57% of race

Time at Steady Pace

1:08:26

34% of race

Time at Slower Pace

19:05

9% of race

Average Pace: 7:45 /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 mi10:49:2922:387:1722:38
7:17
#10184
10K
6.21 mi11:12:4245:517:2323:13
7:28
#11026
15K
9.32 mi11:35:511:09:007:2423:09
7:27
#11077
20K
12.43 mi11:59:051:32:147:2523:14
7:29
#10945
Half
13.11 mi12:04:091:37:187:255:04
7:26
#10944
25K
15.53 mi12:22:211:55:307:2618:12
7:30
#10747
30K
18.64 mi12:47:012:20:107:3124:40
7:56
#10749
20M
20.00 mi12:58:132:31:227:3411:12
8:15
#10838
21M
21.00 mi13:06:562:40:057:378:43
8:43
#10861
35K
21.75 mi13:12:542:46:037:385:58
7:59
#10874
23M
23.00 mi13:23:052:56:147:4010:11
8:08
#10834
24M
24.00 mi13:31:073:04:167:418:02
8:02
#10834
40K
24.85 mi13:38:153:11:247:427:08
8:21
#10869
25.2M
25.20 mi13:41:293:14:387:433:14
9:23
#10912
Finish
26.22 mi13:49:523:23:017:458:23
8:14
#11037
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi101848267826711318(Top 40%)8741(Top 54%)8741(Top 366%)
10K6.21 mi3.10 mi11026-8428681-4148681-41411811(Top 42%)9053(Top 56%)9053(Top 379%)
15K9.32 mi3.11 mi11077-518689-88689-811318(Top 40%)8741(Top 54%)8741(Top 366%)
20K12.43 mi3.11 mi10945+1328606+838606+8310544(Top 37%)8276(Top 51%)8276(Top 347%)
Half13.11 mi0.68 mi10944+18598+88598+811012(Top 39%)8528(Top 53%)8528(Top 357%)
25K15.53 mi2.42 mi10747+1978459+1398459+1399979(Top 35%)7851(Top 49%)7851(Top 329%)
30K18.64 mi3.11 mi10749-28382+778382+7710930(Top 38%)8153(Top 51%)8153(Top 342%)
20M20.00 mi1.36 mi10838-898381+18381+112047(Top 42%)8537(Top 53%)8537(Top 358%)
21M21.00 mi1.00 mi10861-238352+298352+2911729(Top 41%)8221(Top 51%)8221(Top 345%)
35K21.75 mi0.75 mi10874-138336+168336+1612035(Top 42%)8315(Top 52%)8315(Top 348%)
23M23.00 mi1.25 mi10834+408283+538283+5310911(Top 38%)7688(Top 48%)7688(Top 322%)
24M24.00 mi1.00 mi108348240+438240+4311429(Top 40%)7850(Top 49%)7850(Top 329%)
40K24.85 mi0.85 mi10869-358218+228218+2212359(Top 44%)8200(Top 51%)8200(Top 344%)
25.2M25.20 mi0.35 mi10912-438222-48222-413746(Top 48%)8782(Top 55%)8782(Top 368%)
Finish26.22 mi1.02 mi11037-1258245-238245-2314397(Top 51%)9193(Top 57%)9193(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11318

Males

8741

M45-49

8741

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11811

Males

9053

M45-49

9053

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11318

Males

8741

M45-49

8741

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10544

Males

8276

M45-49

8276

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11012

Males

8528

M45-49

8528

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9979

Males

7851

M45-49

7851

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10930

Males

8153

M45-49

8153

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

12047

Males

8537

M45-49

8537

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11729

Males

8221

M45-49

8221

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

12035

Males

8315

M45-49

8315

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10911

Males

7688

M45-49

7688

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11429

Males

7850

M45-49

7850

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12359

Males

8200

M45-49

8200

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13746

Males

8782

M45-49

8782

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14397

Males

9193

M45-49

9193

Passing Analysis

Category:
Athletes Passed
1549
Passed By
2402
Net Change
-853
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10184
5K → 10K55897-842#10184#11026
10K → 15K154205-51#11026#11077
15K → 20K238106+132#11077#10945
20K → Half4039+1#10945#10944
Half → 25K25861+197#10944#10747
25K → 30K244246-2#10747#10749
30K → 20M89178-89#10749#10838
20M → 21M94117-23#10838#10861
21M → 35K5265-13#10861#10874
35K → 23M12282+40#10874#10834
23M → 24M85850#10834#10834
24M → 40K5994-35#10834#10869
40K → 25.2M2568-43#10869#10912
25.2M → Finish34159-125#10912#11037
TOTALS15492402-853
📊

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