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BOSTON MARATHON 2025

Shannon Singletary

Bib: 11990•M

MS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 23%
Division (M50-54)
#0 / 1996
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:49
Rank: #10780
Start → 5K
22:49 | 7:21/mi
10K· 6.21 mi
45:25
Rank: #10409 (+371)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:07:52
Rank: #10049 (+360)
10K → 15K
22:27 | 7:14/mi
20K· 12.43 mi
1:30:17
Rank: #9537 (+512)
15K → 20K
22:25 | 7:13/mi
Half· 13.11 mi
1:35:12
Rank: #9518 (+19)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:52:46
Rank: #9211 (+307)
Half → 25K
17:34 | 7:15/mi
30K· 18.64 mi
2:15:26
Rank: #8551 (+660)
25K → 30K
22:40 | 7:18/mi
20M
2:25:16
Rank: #8241 (+310)
30K → 20M
9:50 | 7:14/mi
21M
2:32:39
Rank: #7880 (+361)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:37:48
Rank: #7717 (+163)
21M → 35K
5:09 | 6:53/mi
23M
2:46:43
Rank: #7447 (+270)
35K → 23M
8:55 | 7:07/mi
24M
2:53:38
Rank: #7233 (+214)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:59:38
Rank: #7063 (+170)
24M → 40K
6:00 | 7:01/mi
25.2M
3:02:14
Rank: #6981 (+82)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:08:52
Rank: #6728 (+253)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:40
Pace7:09 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3022:497:2122:49
7:21
-
10K
6.21 mi11:13:0645:257:1922:36
7:16
-0:05
15K
9.32 mi11:35:331:07:527:1722:27
7:14
-0:02
20K
12.43 mi11:57:581:30:177:1622:25
7:13
-0:01
Half
13.11 mi12:02:531:35:127:164:55
7:12
-0:01
25K
15.53 mi12:20:271:52:467:1617:34
7:15
+0:03
30K
18.64 mi12:43:072:15:267:1622:40
7:18
+0:03
20M
20.00 mi12:52:572:25:167:169:50
7:14
-0:04
21M
21.00 mi13:00:202:32:397:167:23
7:23
+0:09
35K
21.75 mi13:05:292:37:487:155:09
6:53
-0:30
23M
23.00 mi13:14:242:46:437:158:55
7:07
+0:14
24M
24.00 mi13:21:192:53:387:146:55
6:55
-0:12
40K
24.85 mi13:27:192:59:387:146:00
7:01
+0:06
25.2M
25.20 mi13:29:553:02:147:142:36
7:32
+0:31
Finish
26.22 mi13:36:333:08:527:136:38
6:31
-1:01

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

6:31 /mi

Average Pace

7:13 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:37

18% of race

Time at Steady Pace

2:35:15

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:12 /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 mi10:50:3022:497:2122:49
7:21
#10780
10K
6.21 mi11:13:0645:257:1922:36
7:16
#10409
15K
9.32 mi11:35:331:07:527:1722:27
7:14
#10049
20K
12.43 mi11:57:581:30:177:1622:25
7:13
#9537
Half
13.11 mi12:02:531:35:127:164:55
7:12
#9518
25K
15.53 mi12:20:271:52:467:1617:34
7:15
#9211
30K
18.64 mi12:43:072:15:267:1622:40
7:18
#8551
20M
20.00 mi12:52:572:25:167:169:50
7:14
#8241
21M
21.00 mi13:00:202:32:397:167:23
7:23
#7880
35K
21.75 mi13:05:292:37:487:155:09
6:53
#7717
23M
23.00 mi13:14:242:46:437:158:55
7:07
#7447
24M
24.00 mi13:21:192:53:387:146:55
6:55
#7233
40K
24.85 mi13:27:192:59:387:146:00
7:01
#7063
25.2M
25.20 mi13:29:553:02:147:142:36
7:32
#6981
Finish
26.22 mi13:36:333:08:527:136:38
6:31
#6728
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10780857185719321(Top 33%)7719(Top 48%)7719(Top 387%)
10K6.21 mi3.10 mi10409+3718371+2008371+20010117(Top 36%)8206(Top 51%)8206(Top 411%)
15K9.32 mi3.11 mi10049+3608157+2148157+2149321(Top 33%)7719(Top 48%)7719(Top 387%)
20K12.43 mi3.11 mi9537+5127852+3057852+3058316(Top 29%)7056(Top 44%)7056(Top 354%)
Half13.11 mi0.68 mi9518+197837+157837+159056(Top 32%)7488(Top 46%)7488(Top 375%)
25K15.53 mi2.42 mi9211+3077642+1957642+1957935(Top 28%)6720(Top 42%)6720(Top 337%)
30K18.64 mi3.11 mi8551+6607208+4347208+4346429(Top 23%)5608(Top 35%)5608(Top 281%)
20M20.00 mi1.36 mi8241+3106991+2176991+2175424(Top 19%)4799(Top 30%)4799(Top 240%)
21M21.00 mi1.00 mi7880+3616731+2606731+2604051(Top 14%)3674(Top 23%)3674(Top 184%)
35K21.75 mi0.75 mi7717+1636605+1266605+1264657(Top 16%)4135(Top 26%)4135(Top 207%)
23M23.00 mi1.25 mi7447+2706389+2166389+2164471(Top 16%)3938(Top 24%)3938(Top 197%)
24M24.00 mi1.00 mi7233+2146217+1726217+1724195(Top 15%)3696(Top 23%)3696(Top 185%)
40K24.85 mi0.85 mi7063+1706074+1436074+1434038(Top 14%)3526(Top 22%)3526(Top 177%)
25.2M25.20 mi0.35 mi6981+826017+576017+573630(Top 13%)3174(Top 20%)3174(Top 159%)
Finish26.22 mi1.02 mi6728+2535812+2055812+2052894(Top 10%)2589(Top 16%)2589(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9321

Males

7719

M50-54

7719

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10117

Males

8206

M50-54

8206

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9321

Males

7719

M50-54

7719

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8316

Males

7056

M50-54

7056

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9056

Males

7488

M50-54

7488

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7935

Males

6720

M50-54

6720

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6429

Males

5608

M50-54

5608

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5424

Males

4799

M50-54

4799

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4051

Males

3674

M50-54

3674

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4657

Males

4135

M50-54

4135

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4471

Males

3938

M50-54

3938

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4195

Males

3696

M50-54

3696

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4038

Males

3526

M50-54

3526

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3630

Males

3174

M50-54

3174

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2894

Males

2589

M50-54

2589

Passing Analysis

Category:
Athletes Passed
4260*
Passed By
208
Net Change
+4052
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10780
5K → 10K46897+371#10780#10409
10K → 15K39737+360#10409#10049
15K → 20K524*12+512#10049#9537
20K → Half3718+19#9537#9518
Half → 25K33225+307#9518#9211
25K → 30K6699+660#9211#8551
30K → 20M3100+310#8551#8241
20M → 21M3610+361#8241#7880
21M → 35K1630+163#7880#7717
35K → 23M2755+270#7717#7447
23M → 24M2173+214#7447#7233
24M → 40K1711+170#7233#7063
40K → 25.2M820+82#7063#6981
25.2M → Finish2541+253#6981#6728
TOTALS4260*208+4052

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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