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BOSTON MARATHON 2023

Avery Loeffler

Bib: 29358•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:27
Rank: #22931
Start → 5K
30:27 | 9:48/mi
10K· 6.21 mi
1:00:14
Rank: #22888 (+43)
5K → 10K
29:47 | 9:35/mi
15K· 9.32 mi
1:30:29
Rank: #22907 (-19)
10K → 15K
30:15 | 9:44/mi
20K· 12.43 mi
2:01:35
Rank: #22890 (+17)
15K → 20K
31:06 | 10:01/mi
Half· 13.11 mi
2:08:21
Rank: #22905 (-15)
20K → Half
6:46 | 9:55/mi
25K· 15.53 mi
2:33:06
Rank: #22864 (+41)
Half → 25K
24:45 | 10:12/mi
30K· 18.64 mi
3:07:27
Rank: #22926 (-62)
25K → 30K
34:21 | 11:03/mi
20M
3:21:58
Rank: #22853 (+73)
30K → 20M
14:31 | 10:41/mi
21M
3:33:30
Rank: #22807 (+46)
20M → 21M
11:32 | 11:32/mi
35K· 21.75 mi
3:42:23
Rank: #22890 (-83)
21M → 35K
8:53 | 11:52/mi
23M
3:56:01
Rank: #22842 (+48)
35K → 23M
13:38 | 10:53/mi
24M
4:06:49
Rank: #22815 (+27)
23M → 24M
10:48 | 10:48/mi
40K· 24.85 mi
4:15:56
Rank: #22782 (+33)
24M → 40K
9:07 | 10:40/mi
25.2M
4:20:01
Rank: #22774 (+8)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:30:49
Rank: #22799 (-25)
25.2M → Finish
10:48 | 10:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:21
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:22:28
Pace10:52 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4130:279:4830:27
9:48
-
10K
6.21 mi12:23:281:00:149:4229:47
9:35
-0:13
15K
9.32 mi12:53:431:30:299:4230:15
9:44
+0:09
20K
12.43 mi13:24:492:01:359:4731:06
10:01
+0:17
Half
13.11 mi13:31:352:08:219:476:46
9:55
-0:06
25K
15.53 mi13:56:202:33:069:5124:45
10:12
+0:17
30K
18.64 mi14:30:413:07:2710:0334:21
11:03
+0:51
20M
20.00 mi14:45:123:21:5810:0614:31
10:41
-0:22
21M
21.00 mi14:56:443:33:3010:1011:32
11:32
+0:51
35K
21.75 mi15:05:373:42:2310:148:53
11:52
+0:20
23M
23.00 mi15:19:153:56:0110:1613:38
10:53
-0:59
24M
24.00 mi15:30:034:06:4910:1710:48
10:48
-0:05
40K
24.85 mi15:39:104:15:5610:189:07
10:40
-0:08
25.2M
25.20 mi15:43:154:20:0110:194:05
11:50
+1:10
Finish
26.22 mi15:54:034:30:4910:2010:48
10:36
-1:14

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

9:35 /mi

Average Pace

10:20 /mi

Slowest Pace

11:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:06

57% of race

Time at Steady Pace

58:52

22% of race

Time at Slower Pace

58:51

22% of race

Average Pace: 10:20 /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 mi11:53:4130:279:4830:27
9:48
#22931
10K
6.21 mi12:23:281:00:149:4229:47
9:35
#22888
15K
9.32 mi12:53:431:30:299:4230:15
9:44
#22907
20K
12.43 mi13:24:492:01:359:4731:06
10:01
#22890
Half
13.11 mi13:31:352:08:219:476:46
9:55
#22905
25K
15.53 mi13:56:202:33:069:5124:45
10:12
#22864
30K
18.64 mi14:30:413:07:2710:0334:21
11:03
#22926
20M
20.00 mi14:45:123:21:5810:0614:31
10:41
#22853
21M
21.00 mi14:56:443:33:3010:1011:32
11:32
#22807
35K
21.75 mi15:05:373:42:2310:148:53
11:52
#22890
23M
23.00 mi15:19:153:56:0110:1613:38
10:53
#22842
24M
24.00 mi15:30:034:06:4910:1710:48
10:48
#22815
40K
24.85 mi15:39:104:15:5610:189:07
10:40
#22782
25.2M
25.20 mi15:43:154:20:0110:194:05
11:50
#22774
Finish
26.22 mi15:54:034:30:4910:2010:48
10:36
#22799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi229319350935022902(Top 86%)9290(Top 81%)9290(Top 190%)
10K6.21 mi3.10 mi22888+439297+539297+5322764(Top 86%)9217(Top 81%)9217(Top 189%)
15K9.32 mi3.11 mi22907-199300-39300-322902(Top 86%)9290(Top 81%)9290(Top 190%)
20K12.43 mi3.11 mi22890+179289+119289+1122945(Top 86%)9330(Top 82%)9330(Top 191%)
Half13.11 mi0.68 mi22905-159297-89297-823131(Top 87%)9426(Top 83%)9426(Top 193%)
25K15.53 mi2.42 mi22864+419288+99288+922635(Top 85%)9187(Top 80%)9187(Top 188%)
30K18.64 mi3.11 mi22926-629344-569344-5623177(Top 87%)9557(Top 84%)9557(Top 196%)
20M20.00 mi1.36 mi22853+739320+249320+2422114(Top 83%)9051(Top 79%)9051(Top 185%)
21M21.00 mi1.00 mi22807+469307+139307+1321937(Top 82%)8961(Top 78%)8961(Top 183%)
35K21.75 mi0.75 mi22890-839355-489355-4824549(Top 92%)10425(Top 91%)10425(Top 213%)
23M23.00 mi1.25 mi22842+489346+99346+922139(Top 83%)9139(Top 80%)9139(Top 187%)
24M24.00 mi1.00 mi22815+279343+39343+322668(Top 85%)9455(Top 83%)9455(Top 194%)
40K24.85 mi0.85 mi22782+339327+169327+1621643(Top 81%)8966(Top 78%)8966(Top 184%)
25.2M25.20 mi0.35 mi22774+89321+69321+622238(Top 84%)9258(Top 81%)9258(Top 190%)
Finish26.22 mi1.02 mi22799-259341-209341-2023216(Top 87%)9759(Top 85%)9759(Top 200%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

22902

Females

9290

F18-39

9290

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22764

Females

9217

F18-39

9217

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

22902

Females

9290

F18-39

9290

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22945

Females

9330

F18-39

9330

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23131

Females

9426

F18-39

9426

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22635

Females

9187

F18-39

9187

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23177

Females

9557

F18-39

9557

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22114

Females

9051

F18-39

9051

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21937

Females

8961

F18-39

8961

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

24549

Females

10425

F18-39

10425

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22139

Females

9139

F18-39

9139

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22668

Females

9455

F18-39

9455

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21643

Females

8966

F18-39

8966

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22238

Females

9258

F18-39

9258

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23216

Females

9759

F18-39

9759

Passing Analysis

Category:
Athletes Passed
1163
Passed By
1031
Net Change
+132
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22931
5K → 10K256213+43#22931#22888
10K → 15K142161-19#22888#22907
15K → 20K139122+17#22907#22890
20K → Half2540-15#22890#22905
Half → 25K11271+41#22905#22864
25K → 30K98160-62#22864#22926
30K → 20M10128+73#22926#22853
20M → 21M7327+46#22853#22807
21M → 35K1194-83#22807#22890
35K → 23M7123+48#22890#22842
23M → 24M4417+27#22842#22815
24M → 40K4613+33#22815#22782
40K → 25.2M1911+8#22782#22774
25.2M → Finish2651-25#22774#22799
TOTALS11631031+132
📊

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