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BOSTON MARATHON 2023

Mary Burkhardt

Bib: 30072•F

MA

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
33:22
Rank: #25260
Start → 5K
33:22 | 10:44/mi
10K· 6.21 mi
1:07:42
Rank: #25441 (-181)
5K → 10K
34:20 | 11:03/mi
15K· 9.32 mi
1:42:00
Rank: #25375 (+66)
10K → 15K
34:18 | 11:02/mi
20K· 12.43 mi
2:17:57
Rank: #25361 (+14)
15K → 20K
35:57 | 11:34/mi
Half· 13.11 mi
2:25:47
Rank: #25379 (-18)
20K → Half
7:50 | 11:29/mi
25K· 15.53 mi
2:54:13
Rank: #25291 (+88)
Half → 25K
28:26 | 11:44/mi
30K· 18.64 mi
3:32:00
Rank: #25194 (+97)
25K → 30K
37:47 | 12:10/mi
20M
3:48:04
Rank: #25111 (+83)
30K → 20M
16:04 | 11:49/mi
21M
4:00:49
Rank: #25060 (+51)
20M → 21M
12:45 | 12:45/mi
35K· 21.75 mi
4:09:53
Rank: #25057 (+3)
21M → 35K
9:04 | 12:07/mi
23M
4:25:18
Rank: #25034 (+23)
35K → 23M
15:25 | 12:19/mi
24M
4:37:17
Rank: #25033 (+1)
23M → 24M
11:59 | 11:59/mi
40K· 24.85 mi
4:48:07
Rank: #25033
24M → 40K
10:50 | 12:40/mi
25.2M
4:52:48
Rank: #25026 (+7)
40K → 25.2M
4:41 | 13:35/mi
Finish· 26.22 mi
5:04:38
Rank: #25028 (-2)
25.2M → Finish
11:50 | 11:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:25:47
Pace11:07 /mi
2nd Half
Distance13.11 mi
Time2:38:51
Pace12:07 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:5933:2210:4433:22
10:44
-
10K
6.21 mi12:31:191:07:4210:5434:20
11:03
+0:19
15K
9.32 mi13:05:371:42:0010:5734:18
11:02
-0:01
20K
12.43 mi13:41:342:17:5711:0635:57
11:34
+0:32
Half
13.11 mi13:49:242:25:4711:077:50
11:29
-0:05
25K
15.53 mi14:17:502:54:1311:1328:26
11:44
+0:15
30K
18.64 mi14:55:373:32:0011:2237:47
12:10
+0:26
20M
20.00 mi15:11:413:48:0411:2416:04
11:49
-0:21
21M
21.00 mi15:24:264:00:4911:2812:45
12:45
+0:56
35K
21.75 mi15:33:304:09:5311:299:04
12:07
-0:38
23M
23.00 mi15:48:554:25:1811:3215:25
12:19
+0:12
24M
24.00 mi16:00:544:37:1711:3311:59
11:59
-0:20
40K
24.85 mi16:11:444:48:0711:3610:50
12:40
+0:41
25.2M
25.20 mi16:16:254:52:4811:374:41
13:35
+0:55
Finish
26.22 mi16:28:155:04:3811:3811:50
11:37
-1:58

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

10:44 /mi

Average Pace

11:38 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:00

33% of race

Time at Steady Pace

2:38:57

52% of race

Time at Slower Pace

43:41

14% of race

Average Pace: 11:37 /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 mi11:56:5933:2210:4433:22
10:44
#25260
10K
6.21 mi12:31:191:07:4210:5434:20
11:03
#25441
15K
9.32 mi13:05:371:42:0010:5734:18
11:02
#25375
20K
12.43 mi13:41:342:17:5711:0635:57
11:34
#25361
Half
13.11 mi13:49:242:25:4711:077:50
11:29
#25379
25K
15.53 mi14:17:502:54:1311:1328:26
11:44
#25291
30K
18.64 mi14:55:373:32:0011:2237:47
12:10
#25194
20M
20.00 mi15:11:413:48:0411:2416:04
11:49
#25111
21M
21.00 mi15:24:264:00:4911:2812:45
12:45
#25060
35K
21.75 mi15:33:304:09:5311:299:04
12:07
#25057
23M
23.00 mi15:48:554:25:1811:3215:25
12:19
#25034
24M
24.00 mi16:00:544:37:1711:3311:59
11:59
#25033
40K
24.85 mi16:11:444:48:0711:3610:50
12:40
#25033
25.2M
25.20 mi16:16:254:52:4811:374:41
13:35
#25026
Finish
26.22 mi16:28:155:04:3811:3811:50
11:37
#25028
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25260105861058625247(Top 95%)10598(Top 93%)10598(Top 217%)
10K6.21 mi3.10 mi25441-18110693-10710693-10725525(Top 96%)10752(Top 94%)10752(Top 220%)
15K9.32 mi3.11 mi25375+6610659+3410659+3425247(Top 95%)10598(Top 93%)10598(Top 217%)
20K12.43 mi3.11 mi25361+1410662-310662-325324(Top 95%)10671(Top 93%)10671(Top 218%)
Half13.11 mi0.68 mi25379-1810676-1410676-1425479(Top 96%)10774(Top 94%)10774(Top 221%)
25K15.53 mi2.42 mi25291+8810636+4010636+4024913(Top 94%)10469(Top 92%)10469(Top 214%)
30K18.64 mi3.11 mi25194+9710595+4110595+4124675(Top 93%)10386(Top 91%)10386(Top 213%)
20M20.00 mi1.36 mi25111+8310559+3610559+3623984(Top 90%)10076(Top 88%)10076(Top 206%)
21M21.00 mi1.00 mi25060+5110540+1910540+1923774(Top 89%)9972(Top 87%)9972(Top 204%)
35K21.75 mi0.75 mi25057+310547-710547-724804(Top 93%)10558(Top 92%)10558(Top 216%)
23M23.00 mi1.25 mi25034+2310543+410543+424382(Top 92%)10331(Top 90%)10331(Top 212%)
24M24.00 mi1.00 mi25033+110542+110542+124516(Top 92%)10437(Top 91%)10437(Top 214%)
40K24.85 mi0.85 mi2503310546-410546-424655(Top 93%)10500(Top 92%)10500(Top 215%)
25.2M25.20 mi0.35 mi25026+710550-410550-424621(Top 92%)10500(Top 92%)10500(Top 215%)
Finish26.22 mi1.02 mi25028-210553-310553-324833(Top 93%)10578(Top 93%)10578(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

25247

Females

10598

F18-39

10598

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

25525

Females

10752

F18-39

10752

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

25247

Females

10598

F18-39

10598

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

25324

Females

10671

F18-39

10671

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25479

Females

10774

F18-39

10774

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

24913

Females

10469

F18-39

10469

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

24675

Females

10386

F18-39

10386

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

23984

Females

10076

F18-39

10076

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

23774

Females

9972

F18-39

9972

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24804

Females

10558

F18-39

10558

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

24382

Females

10331

F18-39

10331

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

24516

Females

10437

F18-39

10437

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24655

Females

10500

F18-39

10500

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24621

Females

10500

F18-39

10500

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24833

Females

10578

F18-39

10578

Passing Analysis

Category:
Athletes Passed
858
Passed By
626
Net Change
+232
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25260
5K → 10K91272-181#25260#25441
10K → 15K13468+66#25441#25375
15K → 20K9682+14#25375#25361
20K → Half1129-18#25361#25379
Half → 25K11224+88#25379#25291
25K → 30K12629+97#25291#25194
30K → 20M929+83#25194#25111
20M → 21M609+51#25111#25060
21M → 35K2623+3#25060#25057
35K → 23M3916+23#25057#25034
23M → 24M2019+1#25034#25033
24M → 40K24240#25033#25033
40K → 25.2M1811+7#25033#25026
25.2M → Finish911-2#25026#25028
TOTALS858626+232
📊

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