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BOSTON MARATHON 2023

Bruce Blumberg

Bib: 23459•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:12
Rank: #20766
Start → 5K
28:12 | 9:05/mi
10K· 6.21 mi
56:22
Rank: #20937 (-171)
5K → 10K
28:10 | 9:04/mi
15K· 9.32 mi
1:24:13
Rank: #20725 (+212)
10K → 15K
27:51 | 8:58/mi
20K· 12.43 mi
1:52:05
Rank: #20448 (+277)
15K → 20K
27:52 | 8:58/mi
Half· 13.11 mi
1:58:06
Rank: #20407 (+41)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:19:54
Rank: #20139 (+268)
Half → 25K
21:48 | 8:59/mi
30K· 18.64 mi
2:48:34
Rank: #19788 (+351)
25K → 30K
28:40 | 9:14/mi
20M
3:01:12
Rank: #19643 (+145)
30K → 20M
12:38 | 9:18/mi
21M
3:10:58
Rank: #19486 (+157)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
3:17:51
Rank: #19451 (+35)
21M → 35K
6:53 | 9:12/mi
23M
3:29:35
Rank: #19360 (+91)
35K → 23M
11:44 | 9:22/mi
24M
3:38:36
Rank: #19273 (+87)
23M → 24M
9:01 | 9:01/mi
40K· 24.85 mi
3:46:42
Rank: #19231 (+42)
24M → 40K
8:06 | 9:28/mi
25.2M
3:50:18
Rank: #19233 (-2)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:59:32
Rank: #19234 (-1)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:06
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:01:26
Pace9:16 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2228:129:0528:12
9:05
-
10K
6.21 mi11:51:3256:229:0428:10
9:04
-0:01
15K
9.32 mi12:19:231:24:139:0227:51
8:58
-0:06
20K
12.43 mi12:47:151:52:059:0127:52
8:58
0:00
Half
13.11 mi12:53:161:58:069:016:01
8:49
-0:09
25K
15.53 mi13:15:042:19:549:0021:48
8:59
+0:10
30K
18.64 mi13:43:442:48:349:0328:40
9:14
+0:15
20M
20.00 mi13:56:223:01:129:0412:38
9:18
+0:04
21M
21.00 mi14:06:083:10:589:069:46
9:46
+0:28
35K
21.75 mi14:13:013:17:519:066:53
9:12
-0:34
23M
23.00 mi14:24:453:29:359:0711:44
9:22
+0:10
24M
24.00 mi14:33:463:38:369:079:01
9:01
-0:21
40K
24.85 mi14:41:523:46:429:078:06
9:28
+0:27
25.2M
25.20 mi14:45:283:50:189:083:36
10:26
+0:58
Finish
26.22 mi14:54:423:59:329:099:14
9:04
-1:22

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

9:09 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:10

94% of race

Time at Steady Pace

9:46

4% of race

Time at Slower Pace

3:36

2% of race

Average Pace: 9:08 /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 mi11:23:2228:129:0528:12
9:05
#20766
10K
6.21 mi11:51:3256:229:0428:10
9:04
#20937
15K
9.32 mi12:19:231:24:139:0227:51
8:58
#20725
20K
12.43 mi12:47:151:52:059:0127:52
8:58
#20448
Half
13.11 mi12:53:161:58:069:016:01
8:49
#20407
25K
15.53 mi13:15:042:19:549:0021:48
8:59
#20139
30K
18.64 mi13:43:442:48:349:0328:40
9:14
#19788
20M
20.00 mi13:56:223:01:129:0412:38
9:18
#19643
21M
21.00 mi14:06:083:10:589:069:46
9:46
#19486
35K
21.75 mi14:13:013:17:519:066:53
9:12
#19451
23M
23.00 mi14:24:453:29:359:0711:44
9:22
#19360
24M
24.00 mi14:33:463:38:369:079:01
9:01
#19273
40K
24.85 mi14:41:523:46:429:078:06
9:28
#19231
25.2M
25.20 mi14:45:283:50:189:083:36
10:26
#19233
Finish
26.22 mi14:54:423:59:329:099:14
9:04
#19234
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi20766124921249220330(Top 76%)12446(Top 82%)12446(Top 2267%)
10K6.21 mi3.10 mi20937-17112631-13912631-13921136(Top 79%)12769(Top 84%)12769(Top 2326%)
15K9.32 mi3.11 mi20725+21212566+6512566+6520330(Top 76%)12446(Top 82%)12446(Top 2267%)
20K12.43 mi3.11 mi20448+27712453+11312453+11319552(Top 73%)12121(Top 80%)12121(Top 2208%)
Half13.11 mi0.68 mi20407+4112441+1212441+1219561(Top 73%)12124(Top 80%)12124(Top 2208%)
25K15.53 mi2.42 mi20139+26812336+10512336+10518905(Top 71%)11808(Top 78%)11808(Top 2151%)
30K18.64 mi3.11 mi19788+35112158+17812158+17818279(Top 69%)11454(Top 75%)11454(Top 2086%)
20M20.00 mi1.36 mi19643+14512098+6012098+6018005(Top 68%)11240(Top 74%)11240(Top 2047%)
21M21.00 mi1.00 mi19486+15712014+8412014+8417113(Top 64%)10843(Top 71%)10843(Top 1975%)
35K21.75 mi0.75 mi19451+3511997+1711997+1718725(Top 70%)11476(Top 76%)11476(Top 2090%)
23M23.00 mi1.25 mi19360+9111954+4311954+4317808(Top 67%)11036(Top 73%)11036(Top 2010%)
24M24.00 mi1.00 mi19273+8711905+4911905+4917304(Top 65%)10769(Top 71%)10769(Top 1962%)
40K24.85 mi0.85 mi19231+4211882+2311882+2318240(Top 69%)11151(Top 73%)11151(Top 2031%)
25.2M25.20 mi0.35 mi19233-211879+311879+318881(Top 71%)11416(Top 75%)11416(Top 2079%)
Finish26.22 mi1.02 mi19234-111868+1111868+1118271(Top 69%)11204(Top 74%)11204(Top 2041%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20330

Males

12446

M65-69

12446

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21136

Males

12769

M65-69

12769

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20330

Males

12446

M65-69

12446

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19552

Males

12121

M65-69

12121

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

19561

Males

12124

M65-69

12124

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18905

Males

11808

M65-69

11808

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18279

Males

11454

M65-69

11454

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18005

Males

11240

M65-69

11240

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17113

Males

10843

M65-69

10843

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18725

Males

11476

M65-69

11476

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17808

Males

11036

M65-69

11036

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17304

Males

10769

M65-69

10769

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18240

Males

11151

M65-69

11151

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18881

Males

11416

M65-69

11416

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18271

Males

11204

M65-69

11204

Passing Analysis

Category:
Athletes Passed
2321
Passed By
789
Net Change
+1532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20766
5K → 10K217388-171#20766#20937
10K → 15K31098+212#20937#20725
15K → 20K32245+277#20725#20448
20K → Half5110+41#20448#20407
Half → 25K28921+268#20407#20139
25K → 30K36918+351#20139#19788
30K → 20M16419+145#19788#19643
20M → 21M1658+157#19643#19486
21M → 35K6328+35#19486#19451
35K → 23M12231+91#19451#19360
23M → 24M10013+87#19360#19273
24M → 40K7230+42#19273#19231
40K → 25.2M2123-2#19231#19233
25.2M → Finish5657-1#19233#19234
TOTALS2321789+1532
📊

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