Margaret Flack

Bib: 21315F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
Masters (Masters Women)
#0 / 6759
Top 39%
Division (F50-54)
#0 / 1303
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #18642
Start5K
8:17/mi
25:45 split
10K· 6.21 mi
51:50
Rank: #18866 (-224)
5K10K
8:24/mi
26:05 split
15K· 9.32 mi
1:18:03
Rank: #18881 (-15)
10K15K
8:26/mi
26:13 split
20K· 12.43 mi
1:44:41
Rank: #18797 (+84)
15K20K
8:34/mi
26:38 split
Half· 13.11 mi
1:50:25
Rank: #18791 (+6)
20KHalf
8:24/mi
5:44 split
25K· 15.53 mi
2:10:52
Rank: #18436 (+355)
Half25K
8:26/mi
20:27 split
30K· 18.64 mi
2:38:03
Rank: #17963 (+473)
25K30K
8:45/mi
27:11 split
20M
2:50:03
Rank: #17799 (+164)
30K20M
8:50/mi
12:00 split
21M
2:59:32
Rank: #17689 (+110)
20M21M
9:29/mi
9:29 split
35K· 21.75 mi
3:05:57
Rank: #17607 (+82)
21M35K
8:35/mi
6:25 split
23M
3:17:01
Rank: #17446 (+161)
35K23M
8:50/mi
11:04 split
24M
3:25:37
Rank: #17335 (+111)
23M24M
8:36/mi
8:36 split
40K· 24.85 mi
3:32:58
Rank: #17198 (+137)
24M40K
8:36/mi
7:21 split
25.2M
3:36:11
Rank: #17134 (+64)
40K25.2M
9:20/mi
3:13 split
Finish· 26.22 mi
3:44:50
Rank: #17096 (+38)
25.2MFinish
8:29/mi
8:39 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:25
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:54:25
Pace8:44 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4925:458:1725:45
8:17
-
10K
6.21 mi11:45:5451:508:2126:05
8:24
+0:07
15K
9.32 mi12:12:071:18:038:2226:13
8:26
+0:02
20K
12.43 mi12:38:451:44:418:2526:38
8:34
+0:08
Half
13.11 mi12:44:291:50:258:255:44
8:24
-0:10
25K
15.53 mi13:04:562:10:528:2520:27
8:26
+0:02
30K
18.64 mi13:32:072:38:038:2927:11
8:45
+0:19
20M
20.00 mi13:44:072:50:038:3012:00
8:50
+0:05
21M
21.00 mi13:53:362:59:328:339:29
9:29
+0:39
35K
21.75 mi14:00:013:05:578:336:25
8:35
-0:54
23M
23.00 mi14:11:053:17:018:3411:04
8:50
+0:15
24M
24.00 mi14:19:413:25:378:348:36
8:36
-0:14
40K
24.85 mi14:27:023:32:588:347:21
8:36
0:00
25.2M
25.20 mi14:30:153:36:118:353:13
9:20
+0:44
Finish
26.22 mi14:38:543:44:508:358:39
8:29
-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

8:17 /mi

Average Pace

8:35 /mi

Slowest Pace

9:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:08

94% of race

Time at Steady Pace

12:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:34 /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 mi11:19:4925:458:1725:45
8:17
#18642
10K
6.21 mi11:45:5451:508:2126:05
8:24
#18866
15K
9.32 mi12:12:071:18:038:2226:13
8:26
#18881
20K
12.43 mi12:38:451:44:418:2526:38
8:34
#18797
Half
13.11 mi12:44:291:50:258:255:44
8:24
#18791
25K
15.53 mi13:04:562:10:528:2520:27
8:26
#18436
30K
18.64 mi13:32:072:38:038:2927:11
8:45
#17963
20M
20.00 mi13:44:072:50:038:3012:00
8:50
#17799
21M
21.00 mi13:53:362:59:328:339:29
9:29
#17689
35K
21.75 mi14:00:013:05:578:336:25
8:35
#17607
23M
23.00 mi14:11:053:17:018:3411:04
8:50
#17446
24M
24.00 mi14:19:413:25:378:348:36
8:36
#17335
40K
24.85 mi14:27:023:32:588:347:21
8:36
#17198
25.2M
25.20 mi14:30:153:36:118:353:13
9:20
#17134
Finish
26.22 mi14:38:543:44:508:358:39
8:29
#17096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi186426705670518955(Top 67%)6871(Top 56%)6871(Top 527%)
10K6.21 mi3.10 mi18866-2246827-1226827-12219163(Top 67%)6978(Top 57%)6978(Top 536%)
15K9.32 mi3.11 mi18881-156842-156842-1518955(Top 67%)6871(Top 56%)6871(Top 527%)
20K12.43 mi3.11 mi18797+846787+556787+5518688(Top 66%)6735(Top 55%)6735(Top 517%)
Half13.11 mi0.68 mi18791+66787678718632(Top 66%)6691(Top 55%)6691(Top 514%)
25K15.53 mi2.42 mi18436+3556600+1876600+18716793(Top 59%)5740(Top 47%)5740(Top 441%)
30K18.64 mi3.11 mi17963+4736381+2196381+21916301(Top 57%)5634(Top 46%)5634(Top 432%)
20M20.00 mi1.36 mi17799+1646315+666315+6615868(Top 56%)5515(Top 45%)5515(Top 423%)
21M21.00 mi1.00 mi17689+1106262+536262+5316022(Top 56%)5718(Top 47%)5718(Top 439%)
35K21.75 mi0.75 mi17607+826244+186244+1815979(Top 56%)5770(Top 47%)5770(Top 443%)
23M23.00 mi1.25 mi17446+1616196+486196+4815345(Top 54%)5519(Top 45%)5519(Top 424%)
24M24.00 mi1.00 mi17335+1116154+426154+4215197(Top 54%)5495(Top 45%)5495(Top 422%)
40K24.85 mi0.85 mi17198+1376101+536101+5314081(Top 50%)5018(Top 41%)5018(Top 385%)
25.2M25.20 mi0.35 mi17134+646075+266075+2613709(Top 48%)4889(Top 40%)4889(Top 375%)
Finish26.22 mi1.02 mi17096+386072+36072+316175(Top 57%)6119(Top 50%)6119(Top 470%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

18955

Females

6871

F50-54

6871

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19163

Females

6978

F50-54

6978

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

18955

Females

6871

F50-54

6871

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18688

Females

6735

F50-54

6735

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18632

Females

6691

F50-54

6691

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16793

Females

5740

F50-54

5740

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16301

Females

5634

F50-54

5634

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15868

Females

5515

F50-54

5515

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

16022

Females

5718

F50-54

5718

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15979

Females

5770

F50-54

5770

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15345

Females

5519

F50-54

5519

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15197

Females

5495

F50-54

5495

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14081

Females

5018

F50-54

5018

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13709

Females

4889

F50-54

4889

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16175

Females

6119

F50-54

6119

Passing Analysis

Category:
Athletes Passed
2625
Passed By
1079
Net Change
+1546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18642
5K10K175399-224#18642#18866
10K15K192207-15#18866#18881
15K20K236152+84#18881#18797
20KHalf3630+6#18797#18791
Half25K37116+355#18791#18436
25K30K51340+473#18436#17963
30K20M20642+164#17963#17799
20M21M15242+110#17799#17689
21M35K10523+82#17689#17607
35K23M19231+161#17607#17446
23M24M14130+111#17446#17335
24M40K1458+137#17335#17198
40K25.2M7410+64#17198#17134
25.2MFinish8749+38#17134#17096
TOTALS26251079+1546
📊

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