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BOSTON MARATHON 2023

Lauren Reissfelder

Bib: 18073•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Division (F18-39)
#0 / 4884
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:34
Rank: #13309
Start → 5K
24:34 | 7:54/mi
10K· 6.21 mi
49:03
Rank: #13541 (-232)
5K → 10K
24:29 | 7:53/mi
15K· 9.32 mi
1:13:28
Rank: #13425 (+116)
10K → 15K
24:25 | 7:52/mi
20K· 12.43 mi
1:37:58
Rank: #13160 (+265)
15K → 20K
24:30 | 7:53/mi
Half· 13.11 mi
1:43:22
Rank: #13189 (-29)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:02:30
Rank: #12924 (+265)
Half → 25K
19:08 | 7:53/mi
30K· 18.64 mi
2:27:38
Rank: #12637 (+287)
25K → 30K
25:08 | 8:05/mi
20M
2:38:51
Rank: #12572 (+65)
30K → 20M
11:13 | 8:15/mi
21M
2:47:40
Rank: #12532 (+40)
20M → 21M
8:49 | 8:49/mi
35K· 21.75 mi
2:53:49
Rank: #12568 (-36)
21M → 35K
6:09 | 8:13/mi
23M
3:04:18
Rank: #12547 (+21)
35K → 23M
10:29 | 8:22/mi
24M
3:12:34
Rank: #12565 (-18)
23M → 24M
8:16 | 8:16/mi
40K· 24.85 mi
3:19:37
Rank: #12533 (+32)
24M → 40K
7:03 | 8:15/mi
25.2M
3:22:38
Rank: #12502 (+31)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:30:21
Rank: #12365 (+137)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:22
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:46:59
Pace8:10 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3124:347:5424:34
7:54
-
10K
6.21 mi11:40:0049:037:5424:29
7:53
-0:01
15K
9.32 mi12:04:251:13:287:5324:25
7:52
-0:01
20K
12.43 mi12:28:551:37:587:5324:30
7:53
+0:01
Half
13.11 mi12:34:191:43:227:535:24
7:55
+0:02
25K
15.53 mi12:53:272:02:307:5319:08
7:53
-0:02
30K
18.64 mi13:18:352:27:387:5525:08
8:05
+0:12
20M
20.00 mi13:29:482:38:517:5711:13
8:15
+0:10
21M
21.00 mi13:38:372:47:407:598:49
8:49
+0:34
35K
21.75 mi13:44:462:53:498:006:09
8:13
-0:36
23M
23.00 mi13:55:153:04:188:0110:29
8:22
+0:09
24M
24.00 mi14:03:313:12:348:018:16
8:16
-0:06
40K
24.85 mi14:10:343:19:378:027:03
8:15
-0:01
25.2M
25.20 mi14:13:353:22:388:023:01
8:45
+0:30
Finish
26.22 mi14:21:183:30:218:027:43
7:34
-1:11

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

7:34 /mi

Average Pace

8:02 /mi

Slowest Pace

8:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:02

89% of race

Time at Steady Pace

22:19

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:15:3124:347:5424:34
7:54
#13309
10K
6.21 mi11:40:0049:037:5424:29
7:53
#13541
15K
9.32 mi12:04:251:13:287:5324:25
7:52
#13425
20K
12.43 mi12:28:551:37:587:5324:30
7:53
#13160
Half
13.11 mi12:34:191:43:227:535:24
7:55
#13189
25K
15.53 mi12:53:272:02:307:5319:08
7:53
#12924
30K
18.64 mi13:18:352:27:387:5525:08
8:05
#12637
20M
20.00 mi13:29:482:38:517:5711:13
8:15
#12572
21M
21.00 mi13:38:372:47:407:598:49
8:49
#12532
35K
21.75 mi13:44:462:53:498:006:09
8:13
#12568
23M
23.00 mi13:55:153:04:188:0110:29
8:22
#12547
24M
24.00 mi14:03:313:12:348:018:16
8:16
#12565
40K
24.85 mi14:10:343:19:378:027:03
8:15
#12533
25.2M
25.20 mi14:13:353:22:388:023:01
8:45
#12502
Finish
26.22 mi14:21:183:30:218:027:43
7:34
#12365
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi133093612361213194(Top 50%)3601(Top 32%)3601(Top 74%)
10K6.21 mi3.10 mi13541-2323763-1513763-15113817(Top 52%)3933(Top 34%)3933(Top 81%)
15K9.32 mi3.11 mi13425+1163705+583705+5813194(Top 50%)3601(Top 32%)3601(Top 74%)
20K12.43 mi3.11 mi13160+2653585+1203585+12012513(Top 47%)3267(Top 29%)3267(Top 67%)
Half13.11 mi0.68 mi13189-293601-163601-1613717(Top 52%)3904(Top 34%)3904(Top 80%)
25K15.53 mi2.42 mi12924+2653463+1383463+13811872(Top 45%)3004(Top 26%)3004(Top 62%)
30K18.64 mi3.11 mi12637+2873340+1233340+12311588(Top 44%)2950(Top 26%)2950(Top 60%)
20M20.00 mi1.36 mi12572+653314+263314+2612067(Top 45%)3315(Top 29%)3315(Top 68%)
21M21.00 mi1.00 mi12532+403316-23316-212382(Top 47%)3618(Top 32%)3618(Top 74%)
35K21.75 mi0.75 mi12568-363348-323348-3213594(Top 51%)4329(Top 38%)4329(Top 89%)
23M23.00 mi1.25 mi12547+213354-63354-612413(Top 47%)3743(Top 33%)3743(Top 77%)
24M24.00 mi1.00 mi12565-183391-373391-3713071(Top 49%)4160(Top 36%)4160(Top 85%)
40K24.85 mi0.85 mi12533+323394-33394-311699(Top 44%)3511(Top 31%)3511(Top 72%)
25.2M25.20 mi0.35 mi12502+313385+93385+911097(Top 42%)3255(Top 28%)3255(Top 67%)
Finish26.22 mi1.02 mi12365+1373328+573328+579137(Top 34%)2307(Top 20%)2307(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13194

Females

3601

F18-39

3601

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13817

Females

3933

F18-39

3933

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13194

Females

3601

F18-39

3601

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12513

Females

3267

F18-39

3267

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13717

Females

3904

F18-39

3904

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11872

Females

3004

F18-39

3004

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11588

Females

2950

F18-39

2950

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12067

Females

3315

F18-39

3315

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12382

Females

3618

F18-39

3618

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13594

Females

4329

F18-39

4329

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12413

Females

3743

F18-39

3743

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13071

Females

4160

F18-39

4160

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11699

Females

3511

F18-39

3511

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11097

Females

3255

F18-39

3255

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9137

Females

2307

F18-39

2307

Passing Analysis

Category:
Athletes Passed
2168
Passed By
1224
Net Change
+944
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13309
5K → 10K202434-232#13309#13541
10K → 15K263147+116#13541#13425
15K → 20K33166+265#13425#13160
20K → Half2352-29#13160#13189
Half → 25K29025+265#13189#12924
25K → 30K34356+287#12924#12637
30K → 20M13570+65#12637#12572
20M → 21M11272+40#12572#12532
21M → 35K4379-36#12532#12568
35K → 23M9473+21#12568#12547
23M → 24M6583-18#12547#12565
24M → 40K6634+32#12565#12533
40K → 25.2M4918+31#12533#12502
25.2M → Finish15215+137#12502#12365
TOTALS21681224+944
📊

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