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BOSTON MARATHON 2025

Shayne Bailey

Bib: 28371•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:49/mi
27:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
54:57
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:23:16
↑ 67↓ 78
20K· 12.43 mi
9:46/mi
1:53:36
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
2:00:18
↑ 19↓ 370.5%
25K· 15.53 mi
10:29/mi
2:25:44
↑ 66↓ 880.2%
30K· 18.64 mi
11:39/mi
3:01:55
↑ 181↓ 1480.2%
20M
17:26/mi
3:25:36
↑ 64↓ 500.2%
21M
13:30/mi
3:39:06
↑ 106↓ 241.6%
35K· 21.75 mi
10:40/mi
3:47:05
↑ 17↓ 861.7%
23M
12:00/mi
4:02:06
↑ 23↓ 630.6%
24M
13:47/mi
4:15:53
↓ 821.3%
40K· 24.85 mi
10:18/mi
4:24:41
↓ 200.3%
25.2M
13:23/mi
4:29:18
↑ 13↓ 160.2%
Finish· 26.22 mi
11:47/mi
4:41:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:18
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:41:00
Pace12:17 /mi
📊Positive Split: 33.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0127:228:4927:22
8:49
-
10K
6.21 mi12:12:3654:578:5127:35
8:53
+0:04
15K
9.32 mi12:40:551:23:168:5628:19
9:07
+0:14
20K
12.43 mi13:11:151:53:369:0830:20
9:46
+0:39
Half
13.11 mi13:17:572:00:189:116:42
9:49
+0:03
25K
15.53 mi13:43:232:25:449:2325:26
10:29
+0:40
30K
18.64 mi14:19:343:01:559:4636:11
11:39
+1:10
20M
20.00 mi14:43:153:25:3610:1723:41
17:26
+5:47
21M
21.00 mi14:56:453:39:0610:2613:30
13:30
-3:56
35K
21.75 mi15:04:443:47:0510:267:59
10:40
-2:50
23M
23.00 mi15:19:454:02:0610:3215:01
12:00
+1:20
24M
24.00 mi15:33:324:15:5310:4013:47
13:47
+1:47
40K
24.85 mi15:42:204:24:4110:398:48
10:18
-3:29
25.2M
25.20 mi15:46:574:29:1810:414:37
13:23
+3:05
Finish
26.22 mi15:58:574:41:1810:4412:00
11:47
-1:36

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

8:49 /mi

Average Pace

10:44 /mi

Slowest Pace

17:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:16

30% of race

Time at Steady Pace

2:07:26

45% of race

Time at Slower Pace

1:10:36

25% of race

Average Pace: 10:44 /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 mi11:45:0127:228:4927:22
8:49
#21557
10K
6.21 mi12:12:3654:578:5127:35
8:53
#21677
15K
9.32 mi12:40:551:23:168:5628:19
9:07
#21984
20K
12.43 mi13:11:151:53:369:0830:20
9:46
#22532
Half
13.11 mi13:17:572:00:189:116:42
9:49
#22670
25K
15.53 mi13:43:232:25:449:2325:26
10:29
#23053
30K
18.64 mi14:19:343:01:559:4636:11
11:39
#23560
20M
20.00 mi14:43:153:25:3610:1723:41
17:26
#24641
21M
21.00 mi14:56:453:39:0610:2613:30
13:30
#24742
35K
21.75 mi15:04:443:47:0510:267:59
10:40
#24711
23M
23.00 mi15:19:454:02:0610:3215:01
12:00
#24736
24M
24.00 mi15:33:324:15:5310:4013:47
13:47
#24940
40K
24.85 mi15:42:204:24:4110:398:48
10:18
#24837
25.2M
25.20 mi15:46:574:29:1810:414:37
13:23
#24861
Finish
26.22 mi15:58:574:41:1810:4412:00
11:47
#24939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21557131131311322521(Top 79%)13618(Top 85%)13618(Top 241%)
10K6.21 mi3.10 mi21677-12013187-7413187-7421796(Top 77%)13263(Top 82%)13263(Top 235%)
15K9.32 mi3.11 mi21984-30713331-14413331-14422521(Top 79%)13618(Top 85%)13618(Top 241%)
20K12.43 mi3.11 mi22532-54813595-26413595-26423660(Top 83%)14081(Top 87%)14081(Top 250%)
Half13.11 mi0.68 mi22670-13813667-7213667-7224420(Top 86%)14408(Top 89%)14408(Top 255%)
25K15.53 mi2.42 mi23053-38313824-15713824-15724364(Top 86%)14360(Top 89%)14360(Top 255%)
30K18.64 mi3.11 mi23560-50714013-18914013-18925062(Top 88%)14558(Top 90%)14558(Top 258%)
20M20.00 mi1.36 mi24641-108114484-47114484-47128324(Top 100%)16054(Top 100%)16054(Top 285%)
21M21.00 mi1.00 mi24742-10114518-3414518-3425667(Top 90%)14712(Top 91%)14712(Top 261%)
35K21.75 mi0.75 mi24711+3114493+2514493+2523525(Top 83%)13653(Top 85%)13653(Top 242%)
23M23.00 mi1.25 mi24736-2514490+314490+325107(Top 88%)14386(Top 89%)14386(Top 255%)
24M24.00 mi1.00 mi24940-20414564-7414564-7427514(Top 97%)15555(Top 97%)15555(Top 276%)
40K24.85 mi0.85 mi24837+10314507+5714507+5721353(Top 75%)12455(Top 77%)12455(Top 221%)
25.2M25.20 mi0.35 mi24861-2414515-814515-825536(Top 90%)14506(Top 90%)14506(Top 257%)
Finish26.22 mi1.02 mi24939-7814546-3114546-3126509(Top 93%)15048(Top 93%)15048(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22521

Males

13618

M18-39

13618

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21796

Males

13263

M18-39

13263

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22521

Males

13618

M18-39

13618

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23660

Males

14081

M18-39

14081

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24420

Males

14408

M18-39

14408

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

24364

Males

14360

M18-39

14360

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25062

Males

14558

M18-39

14558

30K→20M

18.6 - 20.0 mi

Top 100%
×5story building
+64ft-50ft

Overall

28324

Males

16054

M18-39

16054

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25667

Males

14712

M18-39

14712

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23525

Males

13653

M18-39

13653

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

25107

Males

14386

M18-39

14386

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27514

Males

15555

M18-39

15555

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21353

Males

12455

M18-39

12455

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25536

Males

14506

M18-39

14506

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26509

Males

15048

M18-39

15048

Passing Analysis

Category:
Athletes Passed
739
Passed By
4121
Net Change
-3382
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21557
5K → 10K208328-120#21557#21677
10K → 15K114421-307#21677#21984
15K → 20K65613-548#21984#22532
20K → Half10148-138#22532#22670
Half → 25K50433-383#22670#23053
25K → 30K43550-507#23053#23560
30K → 20M41085-1081#23560#24641
20M → 21M26127-101#24641#24742
21M → 35K4413+31#24742#24711
35K → 23M3964-25#24711#24736
23M → 24M10214-204#24736#24940
24M → 40K1052+103#24940#24837
40K → 25.2M731-24#24837#24861
25.2M → Finish1492-78#24861#24939
TOTALS7394121-3382
📊

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