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BOSTON MARATHON 2025

Lionel Silverston

Bib: 9639•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M45-49)
#0 / 2386
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #5921
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:53
Rank: #5740 (+181)
5K → 10K
20:54 | 6:44/mi
15K· 9.32 mi
1:02:53
Rank: #5662 (+78)
10K → 15K
21:00 | 6:46/mi
20K· 12.43 mi
1:23:56
Rank: #5511 (+151)
15K → 20K
21:03 | 6:47/mi
Half· 13.11 mi
1:28:30
Rank: #5486 (+25)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:00
Rank: #5356 (+130)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:06:11
Rank: #4904 (+452)
25K → 30K
21:11 | 6:49/mi
20M
2:15:20
Rank: #4660 (+244)
30K → 20M
9:09 | 6:44/mi
21M
2:22:30
Rank: #4494 (+166)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:27:27
Rank: #4401 (+93)
21M → 35K
4:57 | 6:37/mi
23M
2:36:07
Rank: #4281 (+120)
35K → 23M
8:40 | 6:55/mi
24M
2:42:58
Rank: #4220 (+61)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:48:45
Rank: #4129 (+91)
24M → 40K
5:47 | 6:46/mi
25.2M
2:51:10
Rank: #4067 (+62)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:57:26
Rank: #3871 (+196)
25.2M → Finish
6:16 | 6:09/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:30
Pace6:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:56
Pace6:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:4820:596:4520:59
6:45
-
10K
6.21 mi11:07:4241:536:4420:54
6:44
-0:01
15K
9.32 mi11:28:421:02:536:4521:00
6:46
+0:02
20K
12.43 mi11:49:451:23:566:4521:03
6:47
+0:01
Half
13.11 mi11:54:191:28:306:454:34
6:42
-0:05
25K
15.53 mi12:10:491:45:006:4616:30
6:48
+0:06
30K
18.64 mi12:32:002:06:116:4621:11
6:49
+0:01
20M
20.00 mi12:41:092:15:206:469:09
6:44
-0:05
21M
21.00 mi12:48:192:22:306:477:10
7:10
+0:26
35K
21.75 mi12:53:162:27:276:474:57
6:37
-0:33
23M
23.00 mi13:01:562:36:076:478:40
6:55
+0:18
24M
24.00 mi13:08:472:42:586:476:51
6:51
-0:04
40K
24.85 mi13:14:342:48:456:475:47
6:46
-0:05
25.2M
25.20 mi13:16:592:51:106:482:25
7:00
+0:14
Finish
26.22 mi13:23:152:57:266:466:16
6:09
-0:51

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

6:09 /mi

Average Pace

6:46 /mi

Slowest Pace

7:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:49

38% of race

Time at Steady Pace

1:50:37

62% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:46:4820:596:4520:59
6:45
#5921
10K
6.21 mi11:07:4241:536:4420:54
6:44
#5740
15K
9.32 mi11:28:421:02:536:4521:00
6:46
#5662
20K
12.43 mi11:49:451:23:566:4521:03
6:47
#5511
Half
13.11 mi11:54:191:28:306:454:34
6:42
#5486
25K
15.53 mi12:10:491:45:006:4616:30
6:48
#5356
30K
18.64 mi12:32:002:06:116:4621:11
6:49
#4904
20M
20.00 mi12:41:092:15:206:469:09
6:44
#4660
21M
21.00 mi12:48:192:22:306:477:10
7:10
#4494
35K
21.75 mi12:53:162:27:276:474:57
6:37
#4401
23M
23.00 mi13:01:562:36:076:478:40
6:55
#4281
24M
24.00 mi13:08:472:42:586:476:51
6:51
#4220
40K
24.85 mi13:14:342:48:456:475:47
6:46
#4129
25.2M
25.20 mi13:16:592:51:106:482:25
7:00
#4067
Finish
26.22 mi13:23:152:57:266:466:16
6:09
#3871
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5921544754475663(Top 20%)5167(Top 32%)5167(Top 217%)
10K6.21 mi3.10 mi5740+1815294+1535294+1535571(Top 20%)5120(Top 32%)5120(Top 215%)
15K9.32 mi3.11 mi5662+785217+775217+775663(Top 20%)5167(Top 32%)5167(Top 217%)
20K12.43 mi3.11 mi5511+1515080+1375080+1375035(Top 18%)4643(Top 29%)4643(Top 195%)
Half13.11 mi0.68 mi5486+255056+245056+245142(Top 18%)4737(Top 29%)4737(Top 199%)
25K15.53 mi2.42 mi5356+1304933+1234933+1234891(Top 17%)4492(Top 28%)4492(Top 188%)
30K18.64 mi3.11 mi4904+4524533+4004533+4003553(Top 13%)3298(Top 20%)3298(Top 138%)
20M20.00 mi1.36 mi4660+2444320+2134320+2132620(Top 9%)2462(Top 15%)2462(Top 103%)
21M21.00 mi1.00 mi4494+1664171+1494171+1492981(Top 10%)2755(Top 17%)2755(Top 115%)
35K21.75 mi0.75 mi4401+934082+894082+893044(Top 11%)2799(Top 17%)2799(Top 117%)
23M23.00 mi1.25 mi4281+1203974+1083974+1083324(Top 12%)3022(Top 19%)3022(Top 127%)
24M24.00 mi1.00 mi4220+613905+693905+693772(Top 13%)3346(Top 21%)3346(Top 140%)
40K24.85 mi0.85 mi4129+913814+913814+912662(Top 9%)2419(Top 15%)2419(Top 101%)
25.2M25.20 mi0.35 mi4067+623760+543760+541512(Top 5%)1383(Top 9%)1383(Top 58%)
Finish26.22 mi1.02 mi3871+1963582+1783582+1781367(Top 5%)1274(Top 8%)1274(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5663

Males

5167

M45-49

5167

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5571

Males

5120

M45-49

5120

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5663

Males

5167

M45-49

5167

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5035

Males

4643

M45-49

4643

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5142

Males

4737

M45-49

4737

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4891

Males

4492

M45-49

4492

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3553

Males

3298

M45-49

3298

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2620

Males

2462

M45-49

2462

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2981

Males

2755

M45-49

2755

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3044

Males

2799

M45-49

2799

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3324

Males

3022

M45-49

3022

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3772

Males

3346

M45-49

3346

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2662

Males

2419

M45-49

2419

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1512

Males

1383

M45-49

1383

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1367

Males

1274

M45-49

1274

Passing Analysis

Category:
Athletes Passed
2417
Passed By
367
Net Change
+2050
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5921
5K → 10K283102+181#5921#5740
10K → 15K16284+78#5740#5662
15K → 20K20150+151#5662#5511
20K → Half4015+25#5511#5486
Half → 25K17444+130#5486#5356
25K → 30K4597+452#5356#4904
30K → 20M2440+244#4904#4660
20M → 21M17812+166#4660#4494
21M → 35K974+93#4494#4401
35K → 23M13414+120#4401#4281
23M → 24M8524+61#4281#4220
24M → 40K965+91#4220#4129
40K → 25.2M664+62#4129#4067
25.2M → Finish1982+196#4067#3871
TOTALS2417367+2050
📊

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