David Alster

Bib: 23305M

AZ

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
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:34
Rank: #22133
Start5K
9:31/mi
29:34 split
10K· 6.21 mi
57:54
Rank: #21787 (+346)
5K10K
9:07/mi
28:20 split
15K· 9.32 mi
1:27:58
Rank: #22107 (-320)
10K15K
9:41/mi
30:04 split
20K· 12.43 mi
1:57:29
Rank: #21958 (+149)
15K20K
9:30/mi
29:31 split
Half· 13.11 mi
2:03:51
Rank: #21930 (+28)
20KHalf
9:20/mi
6:22 split
25K· 15.53 mi
2:27:31
Rank: #21877 (+53)
Half25K
9:46/mi
23:40 split
30K· 18.64 mi
2:59:38
Rank: #21871 (+6)
25K30K
10:20/mi
32:07 split
20M
3:13:28
Rank: #21799 (+72)
30K20M
10:11/mi
13:50 split
21M
3:24:52
Rank: #21810 (-11)
20M21M
11:24/mi
11:24 split
35K· 21.75 mi
3:32:29
Rank: #21816 (-6)
21M35K
10:11/mi
7:37 split
23M
3:45:30
Rank: #21756 (+60)
35K23M
10:24/mi
13:01 split
24M
3:55:53
Rank: #21775 (-19)
23M24M
10:23/mi
10:23 split
40K· 24.85 mi
4:04:57
Rank: #21750 (+25)
24M40K
10:36/mi
9:04 split
25.2M
4:09:57
Rank: #21859 (-109)
40K25.2M
14:30/mi
5:00 split
Finish· 26.22 mi
4:19:50
Rank: #21825 (+34)
25.2MFinish
9:42/mi
9:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:51
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:15:59
Pace10:22 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1529:349:3129:34
9:31
-
10K
6.21 mi11:53:3557:549:1928:20
9:07
-0:24
15K
9.32 mi12:23:391:27:589:2630:04
9:41
+0:34
20K
12.43 mi12:53:101:57:299:2729:31
9:30
-0:11
Half
13.11 mi12:59:322:03:519:276:22
9:20
-0:10
25K
15.53 mi13:23:122:27:319:3023:40
9:46
+0:26
30K
18.64 mi13:55:192:59:389:3832:07
10:20
+0:34
20M
20.00 mi14:09:093:13:289:4013:50
10:11
-0:09
21M
21.00 mi14:20:333:24:529:4511:24
11:24
+1:13
35K
21.75 mi14:28:103:32:299:467:37
10:11
-1:13
23M
23.00 mi14:41:113:45:309:4813:01
10:24
+0:13
24M
24.00 mi14:51:343:55:539:5010:23
10:23
-0:01
40K
24.85 mi15:00:384:04:579:519:04
10:36
+0:13
25.2M
25.20 mi15:05:384:09:579:555:00
14:30
+3:54
Finish
26.22 mi15:15:314:19:509:559:53
9:42
-4:48

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

9:07 /mi

Average Pace

9:55 /mi

Slowest Pace

14:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:47

36% of race

Time at Steady Pace

2:29:39

58% of race

Time at Slower Pace

16:24

6% of race

Average Pace: 9:55 /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 mi11:25:1529:349:3129:34
9:31
#22133
10K
6.21 mi11:53:3557:549:1928:20
9:07
#21787
15K
9.32 mi12:23:391:27:589:2630:04
9:41
#22107
20K
12.43 mi12:53:101:57:299:2729:31
9:30
#21958
Half
13.11 mi12:59:322:03:519:276:22
9:20
#21930
25K
15.53 mi13:23:122:27:319:3023:40
9:46
#21877
30K
18.64 mi13:55:192:59:389:3832:07
10:20
#21871
20M
20.00 mi14:09:093:13:289:4013:50
10:11
#21799
21M
21.00 mi14:20:333:24:529:4511:24
11:24
#21810
35K
21.75 mi14:28:103:32:299:467:37
10:11
#21816
23M
23.00 mi14:41:113:45:309:4813:01
10:24
#21756
24M
24.00 mi14:51:343:55:539:5010:23
10:23
#21775
40K
24.85 mi15:00:384:04:579:519:04
10:36
#21750
25.2M
25.20 mi15:05:384:09:579:555:00
14:30
#21859
Finish
26.22 mi15:15:314:19:509:559:53
9:42
#21825
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi22133131681316822734(Top 85%)13507(Top 89%)13507(Top 2460%)
10K6.21 mi3.10 mi21787+34613029+13913029+13921349(Top 80%)12861(Top 85%)12861(Top 2343%)
15K9.32 mi3.11 mi22107-32013190-16113190-16122734(Top 85%)13507(Top 89%)13507(Top 2460%)
20K12.43 mi3.11 mi21958+14913126+6413126+6421551(Top 81%)12981(Top 86%)12981(Top 2364%)
Half13.11 mi0.68 mi21930+2813119+713119+721613(Top 81%)13018(Top 86%)13018(Top 2371%)
25K15.53 mi2.42 mi21877+5313099+2013099+2021634(Top 81%)12980(Top 86%)12980(Top 2364%)
30K18.64 mi3.11 mi21871+613092+713092+721856(Top 82%)13015(Top 86%)13015(Top 2371%)
20M20.00 mi1.36 mi21799+7213046+4613046+4620954(Top 79%)12548(Top 83%)12548(Top 2286%)
21M21.00 mi1.00 mi21810-1113044+213044+221683(Top 81%)12840(Top 85%)12840(Top 2339%)
35K21.75 mi0.75 mi21816-613032+1213032+1221728(Top 82%)12810(Top 84%)12810(Top 2333%)
23M23.00 mi1.25 mi21756+6012990+4212990+4221058(Top 79%)12481(Top 82%)12481(Top 2273%)
24M24.00 mi1.00 mi21775-19129901299021740(Top 82%)12747(Top 84%)12747(Top 2322%)
40K24.85 mi0.85 mi21750+2512965+2512965+2521464(Top 81%)12566(Top 83%)12566(Top 2289%)
25.2M25.20 mi0.35 mi21859-10913017-5213017-5225389(Top 95%)14489(Top 95%)14489(Top 2639%)
Finish26.22 mi1.02 mi21825+3412992+2512992+2520783(Top 78%)12312(Top 81%)12312(Top 2243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22734

Males

13507

M65-69

13507

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21349

Males

12861

M65-69

12861

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22734

Males

13507

M65-69

13507

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21551

Males

12981

M65-69

12981

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21613

Males

13018

M65-69

13018

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21634

Males

12980

M65-69

12980

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21856

Males

13015

M65-69

13015

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20954

Males

12548

M65-69

12548

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21683

Males

12840

M65-69

12840

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21728

Males

12810

M65-69

12810

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

21058

Males

12481

M65-69

12481

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21740

Males

12747

M65-69

12747

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21464

Males

12566

M65-69

12566

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25389

Males

14489

M65-69

14489

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20783

Males

12312

M65-69

12312

Passing Analysis

Category:
Athletes Passed
1488
Passed By
1180
Net Change
+308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22133
5K10K471125+346#22133#21787
10K15K67387-320#21787#22107
15K20K21768+149#22107#21958
20KHalf4113+28#21958#21930
Half25K13077+53#21930#21877
25K30K145139+6#21877#21871
30K20M10129+72#21871#21799
20M21M5061-11#21799#21810
21M35K3238-6#21810#21816
35K23M9333+60#21816#21756
23M24M3251-19#21756#21775
24M40K5126+25#21775#21750
40K25.2M2111-109#21750#21859
25.2MFinish5622+34#21859#21825
TOTALS14881180+308
📊

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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Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing