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BOSTON MARATHON 2023

Laura Walker

Bib: 16794•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
Masters (Masters Women)
#0 / 6539
Top 21%
Division (F40-44)
#0 / 1878
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:43/mi
24:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:01
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:38:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:29:07
↑ 181↓ 1480.2%
20M
8:22/mi
2:40:29
↑ 64↓ 500.2%
21M
8:49/mi
2:49:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:55:20
↑ 17↓ 861.7%
23M
8:38/mi
3:06:08
↑ 23↓ 630.6%
24M
8:35/mi
3:14:43
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:22:08
↓ 200.3%
25.2M
9:34/mi
3:25:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:34:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:00
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:50:25
Pace8:25 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1624:007:4324:00
7:43
-
10K
6.21 mi11:38:1047:547:4323:54
7:42
-0:01
15K
9.32 mi12:02:171:12:017:4424:07
7:46
+0:04
20K
12.43 mi12:28:521:38:367:5626:35
8:33
+0:47
Half
13.11 mi12:34:161:44:007:565:24
7:55
-0:38
25K
15.53 mi12:53:472:03:317:5719:31
8:03
+0:08
30K
18.64 mi13:19:232:29:078:0025:36
8:14
+0:11
20M
20.00 mi13:30:452:40:298:0111:22
8:22
+0:08
21M
21.00 mi13:39:342:49:188:048:49
8:49
+0:27
35K
21.75 mi13:45:362:55:208:046:02
8:04
-0:45
23M
23.00 mi13:56:243:06:088:0610:48
8:38
+0:34
24M
24.00 mi14:04:593:14:438:078:35
8:35
-0:03
40K
24.85 mi14:12:243:22:088:087:25
8:40
+0:05
25.2M
25.20 mi14:15:423:25:268:093:18
9:34
+0:54
Finish
26.22 mi14:24:413:34:258:118:59
8:49
-0:45

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

7:42 /mi

Average Pace

8:11 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:58

48% of race

Time at Steady Pace

1:12:08

34% of race

Time at Slower Pace

39:19

18% of race

Average Pace: 8:11 /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 mi11:14:1624:007:4324:00
7:43
#11698
10K
6.21 mi11:38:1047:547:4323:54
7:42
#11907
15K
9.32 mi12:02:171:12:017:4424:07
7:46
#12035
20K
12.43 mi12:28:521:38:367:5626:35
8:33
#13579
Half
13.11 mi12:34:161:44:007:565:24
7:55
#13580
25K
15.53 mi12:53:472:03:317:5719:31
8:03
#13478
30K
18.64 mi13:19:232:29:078:0025:36
8:14
#13300
20M
20.00 mi13:30:452:40:298:0111:22
8:22
#13239
21M
21.00 mi13:39:342:49:188:048:49
8:49
#13142
35K
21.75 mi13:45:362:55:208:046:02
8:04
#13115
23M
23.00 mi13:56:243:06:088:0610:48
8:38
#13143
24M
24.00 mi14:04:593:14:438:078:35
8:35
#13226
40K
24.85 mi14:12:243:22:088:087:25
8:40
#13245
25.2M
25.20 mi14:15:423:25:268:093:18
9:34
#13267
Finish
26.22 mi14:24:413:34:258:118:59
8:49
#13471
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi116982696269612418(Top 47%)3145(Top 28%)3145(Top 167%)
10K6.21 mi3.10 mi11907-2092822-1262822-12612192(Top 46%)2985(Top 26%)2985(Top 159%)
15K9.32 mi3.11 mi12035-1282916-942916-9412418(Top 47%)3145(Top 28%)3145(Top 167%)
20K12.43 mi3.11 mi13579-15443830-9143830-91417213(Top 65%)6053(Top 53%)6053(Top 322%)
Half13.11 mi0.68 mi13580-13828+23828+213754(Top 52%)3941(Top 35%)3941(Top 210%)
25K15.53 mi2.42 mi13478+1023792+363792+3613164(Top 49%)3725(Top 33%)3725(Top 198%)
30K18.64 mi3.11 mi13300+1783729+633729+6312626(Top 47%)3542(Top 31%)3542(Top 189%)
20M20.00 mi1.36 mi13239+613702+273702+2712810(Top 48%)3751(Top 33%)3751(Top 200%)
21M21.00 mi1.00 mi13142+973663+393663+3912393(Top 47%)3629(Top 32%)3629(Top 193%)
35K21.75 mi0.75 mi13115+273662+13662+112621(Top 47%)3782(Top 33%)3782(Top 201%)
23M23.00 mi1.25 mi13143-283699-373699-3713950(Top 52%)4583(Top 40%)4583(Top 244%)
24M24.00 mi1.00 mi13226-833779-803779-8014972(Top 56%)5210(Top 46%)5210(Top 277%)
40K24.85 mi0.85 mi13245-193805-263805-2614384(Top 54%)4956(Top 43%)4956(Top 264%)
25.2M25.20 mi0.35 mi13267-223834-293834-2915513(Top 58%)5574(Top 49%)5574(Top 297%)
Finish26.22 mi1.02 mi13471-2043973-1393973-13917114(Top 64%)6429(Top 56%)6429(Top 342%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12418

Females

3145

F40-44

3145

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12192

Females

2985

F40-44

2985

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12418

Females

3145

F40-44

3145

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

17213

Females

6053

F40-44

6053

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13754

Females

3941

F40-44

3941

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13164

Females

3725

F40-44

3725

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12626

Females

3542

F40-44

3542

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12810

Females

3751

F40-44

3751

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12393

Females

3629

F40-44

3629

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12621

Females

3782

F40-44

3782

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13950

Females

4583

F40-44

4583

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14972

Females

5210

F40-44

5210

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14384

Females

4956

F40-44

4956

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15513

Females

5574

F40-44

5574

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

17114

Females

6429

F40-44

6429

Passing Analysis

Category:
Athletes Passed
1413
Passed By
3186
Net Change
-1773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11698
5K → 10K214423-209#11698#11907
10K → 15K146274-128#11907#12035
15K → 20K111555-1544#12035#13579
20K → Half3536-1#13579#13580
Half → 25K17876+102#13580#13478
25K → 30K281103+178#13478#13300
30K → 20M11857+61#13300#13239
20M → 21M13235+97#13239#13142
21M → 35K7144+27#13142#13115
35K → 23M78106-28#13115#13143
23M → 24M44127-83#13143#13226
24M → 40K5776-19#13226#13245
40K → 25.2M2850-22#13245#13267
25.2M → Finish20224-204#13267#13471
TOTALS14133186-1773
📊

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