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BOSTON MARATHON 2023

Alex Silverman

Bib: 13065•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 50%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M65-69)
#0 / 549
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:40/mi
23:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:41
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:35:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:40:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:58:45
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:23:01
↑ 181↓ 1480.2%
20M
7:41/mi
2:33:27
↑ 64↓ 500.2%
21M
7:58/mi
2:41:25
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:47:01
↑ 17↓ 861.7%
23M
7:38/mi
2:56:34
↑ 23↓ 630.6%
24M
7:23/mi
3:03:57
↓ 821.3%
40K· 24.85 mi
7:23/mi
3:10:16
↓ 200.3%
25.2M
8:01/mi
3:13:02
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:20:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:10
Pace7:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1123:507:4023:50
7:40
-
10K
6.21 mi11:15:3647:157:3623:25
7:32
-0:08
15K
9.32 mi11:39:021:10:417:3523:26
7:33
+0:01
20K
12.43 mi12:03:261:35:057:3924:24
7:51
+0:18
Half
13.11 mi12:08:381:40:177:395:12
7:37
-0:14
25K
15.53 mi12:27:061:58:457:3918:28
7:37
0:00
30K
18.64 mi12:51:222:23:017:4024:16
7:49
+0:12
20M
20.00 mi13:01:482:33:277:4010:26
7:41
-0:08
21M
21.00 mi13:09:462:41:257:417:58
7:58
+0:17
35K
21.75 mi13:15:222:47:017:415:36
7:29
-0:29
23M
23.00 mi13:24:552:56:347:419:33
7:38
+0:09
24M
24.00 mi13:32:183:03:577:407:23
7:23
-0:15
40K
24.85 mi13:38:373:10:167:396:19
7:23
0:00
25.2M
25.20 mi13:41:233:13:027:402:46
8:01
+0:38
Finish
26.22 mi13:48:483:20:277:397:25
7:17
-0:44

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

7:39 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:41

99% of race

Time at Steady Pace

2:46

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:52:1123:507:4023:50
7:40
#11187
10K
6.21 mi11:15:3647:157:3623:25
7:32
#10947
15K
9.32 mi11:39:021:10:417:3523:26
7:33
#10791
20K
12.43 mi12:03:261:35:057:3924:24
7:51
#11107
Half
13.11 mi12:08:381:40:177:395:12
7:37
#11118
25K
15.53 mi12:27:061:58:457:3918:28
7:37
#10851
30K
18.64 mi12:51:222:23:017:4024:16
7:49
#10539
20M
20.00 mi13:01:482:33:277:4010:26
7:41
#10334
21M
21.00 mi13:09:462:41:257:417:58
7:58
#10108
35K
21.75 mi13:15:222:47:017:415:36
7:29
#10015
23M
23.00 mi13:24:552:56:347:419:33
7:38
#9819
24M
24.00 mi13:32:183:03:577:407:23
7:23
#9648
40K
24.85 mi13:38:373:10:167:396:19
7:23
#9480
25.2M
25.20 mi13:41:233:13:027:402:46
8:01
#9406
Finish
26.22 mi13:48:483:20:277:397:25
7:17
#9320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi111878742874210514(Top 39%)8412(Top 55%)8412(Top 1532%)
10K6.21 mi3.10 mi10947+2408634+1088634+10810753(Top 40%)8554(Top 56%)8554(Top 1558%)
15K9.32 mi3.11 mi10791+1568548+868548+8610514(Top 39%)8412(Top 55%)8412(Top 1532%)
20K12.43 mi3.11 mi11107-3168706-1588706-15812176(Top 46%)9083(Top 60%)9083(Top 1654%)
Half13.11 mi0.68 mi11118-118705+18705+111118(Top 42%)8650(Top 57%)8650(Top 1576%)
25K15.53 mi2.42 mi10851+2678561+1448561+1449654(Top 36%)7789(Top 51%)7789(Top 1419%)
30K18.64 mi3.11 mi10539+3128351+2108351+2109433(Top 35%)7519(Top 50%)7519(Top 1370%)
20M20.00 mi1.36 mi10334+2058235+1168235+1168020(Top 30%)6610(Top 44%)6610(Top 1204%)
21M21.00 mi1.00 mi10108+2268098+1378098+1377142(Top 27%)5958(Top 39%)5958(Top 1085%)
35K21.75 mi0.75 mi10015+938023+758023+758440(Top 32%)6771(Top 45%)6771(Top 1233%)
23M23.00 mi1.25 mi9819+1967891+1327891+1327265(Top 27%)5992(Top 39%)5992(Top 1091%)
24M24.00 mi1.00 mi9648+1717773+1187773+1186938(Top 26%)5691(Top 38%)5691(Top 1037%)
40K24.85 mi0.85 mi9480+1687647+1267647+1266009(Top 23%)5033(Top 33%)5033(Top 917%)
25.2M25.20 mi0.35 mi9406+747589+587589+586642(Top 25%)5368(Top 35%)5368(Top 978%)
Finish26.22 mi1.02 mi9320+867519+707519+706964(Top 26%)5547(Top 37%)5547(Top 1010%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10514

Males

8412

M65-69

8412

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10753

Males

8554

M65-69

8554

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10514

Males

8412

M65-69

8412

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12176

Males

9083

M65-69

9083

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11118

Males

8650

M65-69

8650

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9654

Males

7789

M65-69

7789

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9433

Males

7519

M65-69

7519

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8020

Males

6610

M65-69

6610

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7142

Males

5958

M65-69

5958

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8440

Males

6771

M65-69

6771

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7265

Males

5992

M65-69

5992

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6938

Males

5691

M65-69

5691

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6009

Males

5033

M65-69

5033

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6642

Males

5368

M65-69

5368

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6964

Males

5547

M65-69

5547

Passing Analysis

Category:
Athletes Passed
2716*
Passed By
849
Net Change
+1867
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11187
5K → 10K443203+240#11187#10947
10K → 15K266110+156#10947#10791
15K → 20K74390-316#10791#11107
20K → Half1930-11#11107#11118
Half → 25K28316+267#11118#10851
25K → 30K35543+312#10851#10539
30K → 20M212*7+205#10539#10334
20M → 21M2326+226#10334#10108
21M → 35K108*15+93#10108#10015
35K → 23M201*5+196#10015#9819
23M → 24M1743+171#9819#9648
24M → 40K169*1+168#9648#9480
40K → 25.2M773+74#9480#9406
25.2M → Finish10317+86#9406#9320
TOTALS2716*849+1867

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

📊

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