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BOSTON MARATHON 2023

Kim Webster

Bib: 9095•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Masters (Masters Women)
#0 / 6539
Top 17%
Division (F45-49)
#0 / 1817
Top 17%
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
7:50/mi
24:20
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:14
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:38:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:43:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:03:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:28:51
↑ 181↓ 1480.2%
20M
8:12/mi
2:40:00
↑ 64↓ 500.2%
21M
8:46/mi
2:48:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:54:45
↑ 17↓ 861.7%
23M
8:20/mi
3:05:11
↑ 23↓ 630.6%
24M
8:06/mi
3:13:17
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:20:18
↓ 200.3%
25.2M
8:30/mi
3:23:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:31:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:33
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:47:34
Pace8:12 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5324:207:5024:20
7:50
-
10K
6.21 mi11:17:1548:427:5024:22
7:51
+0:01
15K
9.32 mi11:41:471:13:147:5124:32
7:54
+0:03
20K
12.43 mi12:06:361:38:037:5324:49
7:59
+0:05
Half
13.11 mi12:12:061:43:337:545:30
8:04
+0:05
25K
15.53 mi12:31:482:03:157:5619:42
8:08
+0:04
30K
18.64 mi12:57:242:28:517:5925:36
8:14
+0:06
20M
20.00 mi13:08:332:40:008:0011:09
8:12
-0:02
21M
21.00 mi13:17:192:48:468:028:46
8:46
+0:34
35K
21.75 mi13:23:182:54:458:025:59
8:00
-0:46
23M
23.00 mi13:33:443:05:118:0310:26
8:20
+0:20
24M
24.00 mi13:41:503:13:178:038:06
8:06
-0:14
40K
24.85 mi13:48:513:20:188:047:01
8:12
+0:06
25.2M
25.20 mi13:51:473:23:148:042:56
8:30
+0:18
Finish
26.22 mi13:59:403:31:078:037:53
7:44
-0:46

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

7:44 /mi

Average Pace

8:03 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:21

96% of race

Time at Steady Pace

8:46

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi10:52:5324:207:5024:20
7:50
#12687
10K
6.21 mi11:17:1548:427:5024:22
7:51
#13061
15K
9.32 mi11:41:471:13:147:5124:32
7:54
#13203
20K
12.43 mi12:06:361:38:037:5324:49
7:59
#13229
Half
13.11 mi12:12:061:43:337:545:30
8:04
#13312
25K
15.53 mi12:31:482:03:157:5619:42
8:08
#13331
30K
18.64 mi12:57:242:28:517:5925:36
8:14
#13178
20M
20.00 mi13:08:332:40:008:0011:09
8:12
#13061
21M
21.00 mi13:17:192:48:468:028:46
8:46
#12955
35K
21.75 mi13:23:182:54:458:025:59
8:00
#12914
23M
23.00 mi13:33:443:05:118:0310:26
8:20
#12854
24M
24.00 mi13:41:503:13:178:038:06
8:06
#12793
40K
24.85 mi13:48:513:20:188:047:01
8:12
#12725
25.2M
25.20 mi13:51:473:23:148:042:56
8:30
#12677
Finish
26.22 mi13:59:403:31:078:037:53
7:44
#12573
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi126873274327413508(Top 51%)3781(Top 33%)3781(Top 208%)
10K6.21 mi3.10 mi13061-3743482-2083482-20813500(Top 51%)3724(Top 33%)3724(Top 205%)
15K9.32 mi3.11 mi13203-1423579-973579-9713508(Top 51%)3781(Top 33%)3781(Top 208%)
20K12.43 mi3.11 mi13229-263620-413620-4113317(Top 50%)3715(Top 33%)3715(Top 204%)
Half13.11 mi0.68 mi13312-833671-513671-5114850(Top 56%)4570(Top 40%)4570(Top 252%)
25K15.53 mi2.42 mi13331-193705-343705-3413682(Top 51%)4017(Top 35%)4017(Top 221%)
30K18.64 mi3.11 mi13178+1533654+513654+5112617(Top 47%)3533(Top 31%)3533(Top 194%)
20M20.00 mi1.36 mi13061+1173600+543600+5411758(Top 44%)3143(Top 28%)3143(Top 173%)
21M21.00 mi1.00 mi12955+1063560+403560+4012084(Top 45%)3446(Top 30%)3446(Top 190%)
35K21.75 mi0.75 mi12914+413557+33557+312150(Top 46%)3513(Top 31%)3513(Top 193%)
23M23.00 mi1.25 mi12854+603541+163541+1612150(Top 46%)3600(Top 32%)3600(Top 198%)
24M24.00 mi1.00 mi12793+613528+133528+1311969(Top 45%)3570(Top 31%)3570(Top 196%)
40K24.85 mi0.85 mi12725+683507+213507+2111432(Top 43%)3380(Top 30%)3380(Top 186%)
25.2M25.20 mi0.35 mi12677+483486+213486+219678(Top 36%)2561(Top 22%)2561(Top 141%)
Finish26.22 mi1.02 mi12573+1043449+373449+3710244(Top 38%)2821(Top 25%)2821(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13508

Females

3781

F45-49

3781

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13500

Females

3724

F45-49

3724

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13508

Females

3781

F45-49

3781

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13317

Females

3715

F45-49

3715

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14850

Females

4570

F45-49

4570

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13682

Females

4017

F45-49

4017

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12617

Females

3533

F45-49

3533

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11758

Females

3143

F45-49

3143

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12084

Females

3446

F45-49

3446

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12150

Females

3513

F45-49

3513

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12150

Females

3600

F45-49

3600

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11969

Females

3570

F45-49

3570

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11432

Females

3380

F45-49

3380

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9678

Females

2561

F45-49

2561

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10244

Females

2821

F45-49

2821

Passing Analysis

Category:
Athletes Passed
1766
Passed By
1652
Net Change
+114
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12687
5K → 10K164538-374#12687#13061
10K → 15K155297-142#13061#13203
15K → 20K182208-26#13203#13229
20K → Half1093-83#13229#13312
Half → 25K134153-19#13312#13331
25K → 30K263110+153#13331#13178
30K → 20M14932+117#13178#13061
20M → 21M15246+106#13061#12955
21M → 35K6928+41#12955#12914
35K → 23M11151+60#12914#12854
23M → 24M10342+61#12854#12793
24M → 40K9527+68#12793#12725
40K → 25.2M546+48#12725#12677
25.2M → Finish12521+104#12677#12573
TOTALS17661652+114
📊

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