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BOSTON MARATHON 2023

Megan Walker

Bib: 17575•F

UT

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0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Age Group (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #13729
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
48:49
Rank: #13236 (+493)
5K → 10K
24:05 | 7:45/mi
15K· 9.32 mi
1:12:54
Rank: #12889 (+347)
10K → 15K
24:05 | 7:45/mi
20K· 12.43 mi
1:37:05
Rank: #12502 (+387)
15K → 20K
24:11 | 7:47/mi
Half· 13.11 mi
1:42:18
Rank: #12442 (+60)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
2:01:02
Rank: #12110 (+332)
Half → 25K
18:44 | 7:44/mi
30K· 18.64 mi
2:25:34
Rank: #11697 (+413)
25K → 30K
24:32 | 7:54/mi
20M
2:36:23
Rank: #11528 (+169)
30K → 20M
10:49 | 7:58/mi
21M
2:44:40
Rank: #11340 (+188)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:50:18
Rank: #11236 (+104)
21M → 35K
5:38 | 7:32/mi
23M
3:00:02
Rank: #11014 (+222)
35K → 23M
9:44 | 7:46/mi
24M
3:07:23
Rank: #10797 (+217)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
3:13:42
Rank: #10576 (+221)
24M → 40K
6:19 | 7:23/mi
25.2M
3:16:25
Rank: #10492 (+84)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:23:22
Rank: #10160 (+332)
25.2M → Finish
6:57 | 6:49/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.11 mi
Time1:42:18
Pace7:48 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:41:04
Pace7:43 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3324:447:5824:44
7:58
-
10K
6.21 mi11:39:3848:497:5124:05
7:45
-0:13
15K
9.32 mi12:03:431:12:547:4924:05
7:45
0:00
20K
12.43 mi12:27:541:37:057:4924:11
7:47
+0:02
Half
13.11 mi12:33:071:42:187:485:13
7:39
-0:08
25K
15.53 mi12:51:512:01:027:4718:44
7:44
+0:05
30K
18.64 mi13:16:232:25:347:4924:32
7:54
+0:10
20M
20.00 mi13:27:122:36:237:4910:49
7:58
+0:04
21M
21.00 mi13:35:292:44:407:508:17
8:17
+0:19
35K
21.75 mi13:41:072:50:187:505:38
7:32
-0:45
23M
23.00 mi13:50:513:00:027:509:44
7:46
+0:14
24M
24.00 mi13:58:123:07:237:487:21
7:21
-0:25
40K
24.85 mi14:04:313:13:427:486:19
7:23
+0:02
25.2M
25.20 mi14:07:143:16:257:482:43
7:53
+0:30
Finish
26.22 mi14:14:113:23:227:466:57
6:49
-1:04

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:49 /mi

Average Pace

7:46 /mi

Slowest Pace

8:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

26:15

13% of race

Time at Steady Pace

2:13:17

66% of race

Time at Slower Pace

43:50

22% of race

Average Pace: 7:45 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:15:3324:447:5824:44
7:58
#13729
10K
6.21 mi11:39:3848:497:5124:05
7:45
#13236
15K
9.32 mi12:03:431:12:547:4924:05
7:45
#12889
20K
12.43 mi12:27:541:37:057:4924:11
7:47
#12502
Half
13.11 mi12:33:071:42:187:485:13
7:39
#12442
25K
15.53 mi12:51:512:01:027:4718:44
7:44
#12110
30K
18.64 mi13:16:232:25:347:4924:32
7:54
#11697
20M
20.00 mi13:27:122:36:237:4910:49
7:58
#11528
21M
21.00 mi13:35:292:44:407:508:17
8:17
#11340
35K
21.75 mi13:41:072:50:187:505:38
7:32
#11236
23M
23.00 mi13:50:513:00:027:509:44
7:46
#11014
24M
24.00 mi13:58:123:07:237:487:21
7:21
#10797
40K
24.85 mi14:04:313:13:427:486:19
7:23
#10576
25.2M
25.20 mi14:07:143:16:257:482:43
7:53
#10492
Finish
26.22 mi14:14:113:23:227:466:57
6:49
#10160
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137293856385612312(Top 46%)3079(Top 27%)3079(Top 63%)
10K6.21 mi3.10 mi13236+4933583+2733583+27312700(Top 48%)3253(Top 28%)3253(Top 67%)
15K9.32 mi3.11 mi12889+3473391+1923391+19212312(Top 46%)3079(Top 27%)3079(Top 63%)
20K12.43 mi3.11 mi12502+3873200+1913200+19111609(Top 44%)2739(Top 24%)2739(Top 56%)
Half13.11 mi0.68 mi12442+603170+303170+3011434(Top 43%)2575(Top 23%)2575(Top 53%)
25K15.53 mi2.42 mi12110+3323001+1693001+16910514(Top 39%)2237(Top 20%)2237(Top 46%)
30K18.64 mi3.11 mi11697+4132806+1952806+19510120(Top 38%)2219(Top 19%)2219(Top 45%)
20M20.00 mi1.36 mi11528+1692730+762730+769987(Top 38%)2218(Top 19%)2218(Top 45%)
21M21.00 mi1.00 mi11340+1882641+892641+899165(Top 34%)1997(Top 17%)1997(Top 41%)
35K21.75 mi0.75 mi11236+1042593+482593+488801(Top 33%)1834(Top 16%)1834(Top 38%)
23M23.00 mi1.25 mi11014+2222501+922501+928270(Top 31%)1708(Top 15%)1708(Top 35%)
24M24.00 mi1.00 mi10797+2172421+802421+806777(Top 25%)1199(Top 10%)1199(Top 25%)
40K24.85 mi0.85 mi10576+2212351+702351+706060(Top 23%)1018(Top 9%)1018(Top 21%)
25.2M25.20 mi0.35 mi10492+842314+372314+375914(Top 22%)1045(Top 9%)1045(Top 21%)
Finish26.22 mi1.02 mi10160+3322176+1382176+1384234(Top 16%)520(Top 5%)520(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12312

Females

3079

F18-39

3079

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12700

Females

3253

F18-39

3253

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12312

Females

3079

F18-39

3079

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

11609

Females

2739

F18-39

2739

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11434

Females

2575

F18-39

2575

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10514

Females

2237

F18-39

2237

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10120

Females

2219

F18-39

2219

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

9987

Females

2218

F18-39

2218

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9165

Females

1997

F18-39

1997

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8801

Females

1834

F18-39

1834

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8270

Females

1708

F18-39

1708

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6777

Females

1199

F18-39

1199

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6060

Females

1018

F18-39

1018

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5914

Females

1045

F18-39

1045

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4234

Females

520

F18-39

520

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3913
Passed By
344
Net Change
+3569
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13729
5K → 10K618125+493#13729#13236
10K → 15K41871+347#13236#12889
15K → 20K42639+387#12889#12502
20K → Half699+60#12502#12442
Half → 25K34311+332#12442#12110
25K → 30K43118+413#12110#11697
30K → 20M19627+169#11697#11528
20M → 21M20416+188#11528#11340
21M → 35K11410+104#11340#11236
35K → 23M2308+222#11236#11014
23M → 24M2225+217#11014#10797
24M → 40K2232+221#10797#10576
40K → 25.2M862+84#10576#10492
25.2M → Finish3331+332#10492#10160
TOTALS3913344+3569
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing