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BOSTON MARATHON 2023

Kelly Walton

Bib: 25383•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

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
10:41/mi
33:13
↑ 97↓ 3451.5%
10K· 6.21 mi
10:06/mi
1:04:35
↑ 79↓ 1380.4%
15K· 9.32 mi
10:16/mi
1:36:30
↑ 67↓ 78
20K· 12.43 mi
9:53/mi
2:07:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:21/mi
2:13:34
↑ 19↓ 370.5%
25K· 15.53 mi
9:46/mi
2:37:16
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
3:09:08
↑ 181↓ 1480.2%
20M
10:29/mi
3:23:23
↑ 64↓ 500.2%
21M
10:54/mi
3:34:17
↑ 106↓ 241.6%
35K· 21.75 mi
10:18/mi
3:41:59
↑ 17↓ 861.7%
23M
10:18/mi
3:54:53
↑ 23↓ 630.6%
24M
10:00/mi
4:04:53
↓ 821.3%
40K· 24.85 mi
10:05/mi
4:13:30
↓ 200.3%
25.2M
10:15/mi
4:17:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
4:25:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:13:34
Pace10:11 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:12:09
Pace10:05 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1833:1310:4133:13
10:41
-
10K
6.21 mi12:24:401:04:3510:2431:22
10:06
-0:35
15K
9.32 mi12:56:351:36:3010:2131:55
10:16
+0:10
20K
12.43 mi13:27:162:07:1110:1430:41
9:53
-0:23
Half
13.11 mi13:33:392:13:3410:116:23
9:21
-0:32
25K
15.53 mi13:57:212:37:1610:0723:42
9:46
+0:25
30K
18.64 mi14:29:133:09:0810:0931:52
10:15
+0:29
20M
20.00 mi14:43:283:23:2310:1014:15
10:29
+0:14
21M
21.00 mi14:54:223:34:1710:1210:54
10:54
+0:25
35K
21.75 mi15:02:043:41:5910:127:42
10:18
-0:36
23M
23.00 mi15:14:583:54:5310:1312:54
10:18
0:00
24M
24.00 mi15:24:584:04:5310:1210:00
10:00
-0:18
40K
24.85 mi15:33:354:13:3010:128:37
10:05
+0:05
25.2M
25.20 mi15:37:074:17:0210:123:32
10:15
+0:10
Finish
26.22 mi15:45:484:25:4310:098:41
8:31
-1:44

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

8:31 /mi

Average Pace

10:09 /mi

Slowest Pace

10:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:27

26% of race

Time at Steady Pace

2:32:09

57% of race

Time at Slower Pace

44:07

17% of race

Average Pace: 10:08 /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 mi11:53:1833:1310:4133:13
10:41
#25163
10K
6.21 mi12:24:401:04:3510:2431:22
10:06
#24478
15K
9.32 mi12:56:351:36:3010:2131:55
10:16
#24337
20K
12.43 mi13:27:162:07:1110:1430:41
9:53
#23877
Half
13.11 mi13:33:392:13:3410:116:23
9:21
#23785
25K
15.53 mi13:57:212:37:1610:0723:42
9:46
#23463
30K
18.64 mi14:29:133:09:0810:0931:52
10:15
#23144
20M
20.00 mi14:43:283:23:2310:1014:15
10:29
#23019
21M
21.00 mi14:54:223:34:1710:1210:54
10:54
#22890
35K
21.75 mi15:02:043:41:5910:127:42
10:18
#22862
23M
23.00 mi15:14:583:54:5310:1312:54
10:18
#22735
24M
24.00 mi15:24:584:04:5310:1210:00
10:00
#22641
40K
24.85 mi15:33:354:13:3010:128:37
10:05
#22574
25.2M
25.20 mi15:37:074:17:0210:123:32
10:15
#22520
Finish
26.22 mi15:45:484:25:4310:098:41
8:31
#22367
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25163105221052224031(Top 90%)9902(Top 87%)9902(Top 203%)
10K6.21 mi3.10 mi24478+68510147+37510147+37523900(Top 90%)9831(Top 86%)9831(Top 201%)
15K9.32 mi3.11 mi24337+14110074+7310074+7324031(Top 90%)9902(Top 87%)9902(Top 203%)
20K12.43 mi3.11 mi23877+4609820+2549820+25422588(Top 85%)9130(Top 80%)9130(Top 187%)
Half13.11 mi0.68 mi23785+929771+499771+4921726(Top 82%)8651(Top 76%)8651(Top 177%)
25K15.53 mi2.42 mi23463+3229601+1709601+17021678(Top 81%)8658(Top 76%)8658(Top 177%)
30K18.64 mi3.11 mi23144+3199459+1429459+14221684(Top 81%)8734(Top 76%)8734(Top 179%)
20M20.00 mi1.36 mi23019+1259408+519408+5121710(Top 82%)8817(Top 77%)8817(Top 181%)
21M21.00 mi1.00 mi22890+1299349+599349+5920620(Top 77%)8256(Top 72%)8256(Top 169%)
35K21.75 mi0.75 mi22862+289343+69343+621986(Top 83%)9044(Top 79%)9044(Top 185%)
23M23.00 mi1.25 mi22735+1279288+559288+5520847(Top 78%)8436(Top 74%)8436(Top 173%)
24M24.00 mi1.00 mi22641+949243+459243+4520798(Top 78%)8435(Top 74%)8435(Top 173%)
40K24.85 mi0.85 mi22574+679213+309213+3020206(Top 76%)8175(Top 72%)8175(Top 167%)
25.2M25.20 mi0.35 mi22520+549188+259188+2518372(Top 69%)7181(Top 63%)7181(Top 147%)
Finish26.22 mi1.02 mi22367+1539106+829106+8215591(Top 59%)5596(Top 49%)5596(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24031

Females

9902

F18-39

9902

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

23900

Females

9831

F18-39

9831

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24031

Females

9902

F18-39

9902

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22588

Females

9130

F18-39

9130

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21726

Females

8651

F18-39

8651

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21678

Females

8658

F18-39

8658

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21684

Females

8734

F18-39

8734

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21710

Females

8817

F18-39

8817

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20620

Females

8256

F18-39

8256

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

21986

Females

9044

F18-39

9044

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20847

Females

8436

F18-39

8436

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20798

Females

8435

F18-39

8435

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20206

Females

8175

F18-39

8175

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18372

Females

7181

F18-39

7181

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15591

Females

5596

F18-39

5596

Passing Analysis

Category:
Athletes Passed
2931
Passed By
135
Net Change
+2796
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25163
5K → 10K70217+685#25163#24478
10K → 15K20261+141#24478#24337
15K → 20K4655+460#24337#23877
20K → Half920+92#23877#23785
Half → 25K3242+322#23785#23463
25K → 30K3289+319#23463#23144
30K → 20M1349+125#23144#23019
20M → 21M1334+129#23019#22890
21M → 35K4113+28#22890#22862
35K → 23M1325+127#22862#22735
23M → 24M995+94#22735#22641
24M → 40K703+67#22641#22574
40K → 25.2M562+54#22574#22520
25.2M → Finish1530+153#22520#22367
TOTALS2931135+2796
📊

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