Isaac Elfon

Bib: 8181M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 40%
Masters (Masters Men)
#0 / 9891
Top 27%
Division (M45-49)
#0 / 2252
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:20
Rank: #7417
Start5K
22:20 | 7:11/mi
10K· 6.21 mi
44:07
Rank: #7105 (+312)
5K10K
21:47 | 7:01/mi
15K· 9.32 mi
1:06:03
Rank: #7011 (+94)
10K15K
21:56 | 7:04/mi
20K· 12.43 mi
1:28:19
Rank: #6977 (+34)
15K20K
22:16 | 7:10/mi
Half· 13.11 mi
1:33:10
Rank: #6978 (-1)
20KHalf
4:51 | 7:07/mi
25K· 15.53 mi
1:50:43
Rank: #6933 (+45)
Half25K
17:33 | 7:14/mi
30K· 18.64 mi
2:14:26
Rank: #7054 (-121)
25K30K
23:43 | 7:38/mi
20M
2:25:05
Rank: #7145 (-91)
30K20M
10:39 | 7:50/mi
21M
2:32:51
Rank: #7032 (+113)
20M21M
7:46 | 7:46/mi
35K· 21.75 mi
2:38:29
Rank: #7084 (-52)
21M35K
5:38 | 7:32/mi
23M
2:48:16
Rank: #7111 (-27)
35K23M
9:47 | 7:49/mi
24M
2:55:49
Rank: #7126 (-15)
23M24M
7:33 | 7:33/mi
40K· 24.85 mi
3:02:39
Rank: #7188 (-62)
24M40K
6:50 | 8:00/mi
25.2M
3:05:29
Rank: #7179 (+9)
40K25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:12:42
Rank: #7063 (+116)
25.2MFinish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:10
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:39:32
Pace7:36 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5722:207:1122:20
7:11
-
10K
6.21 mi11:09:4444:077:0621:47
7:01
-0:10
15K
9.32 mi11:31:401:06:037:0521:56
7:04
+0:03
20K
12.43 mi11:53:561:28:197:0622:16
7:10
+0:06
Half
13.11 mi11:58:471:33:107:064:51
7:07
-0:03
25K
15.53 mi12:16:201:50:437:0817:33
7:14
+0:07
30K
18.64 mi12:40:032:14:267:1323:43
7:38
+0:24
20M
20.00 mi12:50:422:25:057:1510:39
7:50
+0:12
21M
21.00 mi12:58:282:32:517:177:46
7:46
-0:04
35K
21.75 mi13:04:062:38:297:175:38
7:32
-0:14
23M
23.00 mi13:13:532:48:167:199:47
7:49
+0:17
24M
24.00 mi13:21:262:55:497:207:33
7:33
-0:16
40K
24.85 mi13:28:163:02:397:216:50
8:00
+0:27
25.2M
25.20 mi13:31:063:05:297:222:50
8:13
+0:13
Finish
26.22 mi13:38:193:12:427:217:13
7:05
-1:08

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

7:01 /mi

Average Pace

7:21 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:50

80% of race

Time at Steady Pace

37:52

20% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:47:5722:207:1122:20
7:11
#7417
10K
6.21 mi11:09:4444:077:0621:47
7:01
#7105
15K
9.32 mi11:31:401:06:037:0521:56
7:04
#7011
20K
12.43 mi11:53:561:28:197:0622:16
7:10
#6977
Half
13.11 mi11:58:471:33:107:064:51
7:07
#6978
25K
15.53 mi12:16:201:50:437:0817:33
7:14
#6933
30K
18.64 mi12:40:032:14:267:1323:43
7:38
#7054
20M
20.00 mi12:50:422:25:057:1510:39
7:50
#7145
21M
21.00 mi12:58:282:32:517:177:46
7:46
#7032
35K
21.75 mi13:04:062:38:297:175:38
7:32
#7084
23M
23.00 mi13:13:532:48:167:199:47
7:49
#7111
24M
24.00 mi13:21:262:55:497:207:33
7:33
#7126
40K
24.85 mi13:28:163:02:397:216:50
8:00
#7188
25.2M
25.20 mi13:31:063:05:297:222:50
8:13
#7179
Finish
26.22 mi13:38:193:12:427:217:13
7:05
#7063
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7417658365836907(Top 26%)6173(Top 41%)6173(Top 274%)
10K6.21 mi3.10 mi7105+3126338+2456338+2456904(Top 26%)6165(Top 41%)6165(Top 274%)
15K9.32 mi3.11 mi7011+946262+766262+766907(Top 26%)6173(Top 41%)6173(Top 274%)
20K12.43 mi3.11 mi6977+346235+276235+276902(Top 26%)6136(Top 40%)6136(Top 272%)
Half13.11 mi0.68 mi6978-16233+26233+27197(Top 27%)6366(Top 42%)6366(Top 283%)
25K15.53 mi2.42 mi6933+456190+436190+436889(Top 26%)6082(Top 40%)6082(Top 270%)
30K18.64 mi3.11 mi7054-1216255-656255-658171(Top 31%)6786(Top 45%)6786(Top 301%)
20M20.00 mi1.36 mi7145-916310-556310-559113(Top 34%)7251(Top 48%)7251(Top 322%)
21M21.00 mi1.00 mi7032+1136215+956215+956000(Top 23%)5198(Top 34%)5198(Top 231%)
35K21.75 mi0.75 mi7084-526243-286243-288681(Top 33%)6898(Top 45%)6898(Top 306%)
23M23.00 mi1.25 mi7111-276229+146229+148481(Top 32%)6682(Top 44%)6682(Top 297%)
24M24.00 mi1.00 mi7126-156223+66223+68008(Top 30%)6316(Top 42%)6316(Top 280%)
40K24.85 mi0.85 mi7188-626249-266249-269954(Top 37%)7305(Top 48%)7305(Top 324%)
25.2M25.20 mi0.35 mi7179+96230+196230+197717(Top 29%)5993(Top 39%)5993(Top 266%)
Finish26.22 mi1.02 mi7063+1166122+1086122+1085712(Top 21%)4739(Top 31%)4739(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6907

Males

6173

M45-49

6173

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6904

Males

6165

M45-49

6165

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6907

Males

6173

M45-49

6173

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6902

Males

6136

M45-49

6136

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7197

Males

6366

M45-49

6366

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6889

Males

6082

M45-49

6082

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8171

Males

6786

M45-49

6786

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9113

Males

7251

M45-49

7251

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6000

Males

5198

M45-49

5198

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8681

Males

6898

M45-49

6898

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8481

Males

6682

M45-49

6682

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8008

Males

6316

M45-49

6316

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9954

Males

7305

M45-49

7305

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7717

Males

5993

M45-49

5993

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5712

Males

4739

M45-49

4739

Passing Analysis

Category:
Athletes Passed
1417
Passed By
1063
Net Change
+354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7417
5K10K40896+312#7417#7105
10K15K18995+94#7105#7011
15K20K11581+34#7011#6977
20KHalf1718-1#6977#6978
Half25K10257+45#6978#6933
25K30K79200-121#6933#7054
30K20M28119-91#7054#7145
20M21M13219+113#7145#7032
21M35K1971-52#7032#7084
35K23M82109-27#7084#7111
23M24M4964-15#7111#7126
24M40K3395-62#7126#7188
40K25.2M3021+9#7188#7179
25.2MFinish13418+116#7179#7063
TOTALS14171063+354
📊

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