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BOSTON MARATHON 2023

Sarah Anderson

Bib: 14246•F

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 45%
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
8:42/mi
27:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:20:50
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:47:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:53:27
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:13:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:39:50
↑ 181↓ 1480.2%
20M
8:20/mi
2:51:10
↑ 64↓ 500.2%
21M
8:51/mi
3:00:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
3:05:56
↑ 17↓ 861.7%
23M
8:17/mi
3:16:18
↑ 23↓ 630.6%
24M
7:55/mi
3:24:13
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:30:56
↓ 200.3%
25.2M
8:27/mi
3:33:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:47/mi
3:41:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:53:27
Pace8:39 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:20
Pace8:16 /mi
📊Negative Split: 4.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:2127:038:4227:03
8:42
-
10K
6.21 mi11:24:3054:128:4327:09
8:44
+0:02
15K
9.32 mi11:51:081:20:508:4026:38
8:34
-0:10
20K
12.43 mi12:18:001:47:428:4026:52
8:39
+0:05
Half
13.11 mi12:23:451:53:278:395:45
8:26
-0:13
25K
15.53 mi12:44:112:13:538:3720:26
8:26
0:00
30K
18.64 mi13:10:082:39:508:3425:57
8:21
-0:05
20M
20.00 mi13:21:282:51:108:3311:20
8:20
-0:01
21M
21.00 mi13:30:193:00:018:348:51
8:51
+0:31
35K
21.75 mi13:36:143:05:568:335:55
7:55
-0:56
23M
23.00 mi13:46:363:16:188:3210:22
8:17
+0:22
24M
24.00 mi13:54:313:24:138:317:55
7:55
-0:22
40K
24.85 mi14:01:143:30:568:296:43
7:51
-0:04
25.2M
25.20 mi14:04:093:33:518:292:55
8:27
+0:36
Finish
26.22 mi14:12:053:41:478:287:56
7:47
-0:40

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

7:47 /mi

Average Pace

8:28 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:14

47% of race

Time at Steady Pace

1:56:33

53% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:28 /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 mi10:57:2127:038:4227:03
8:42
#18931
10K
6.21 mi11:24:3054:128:4327:09
8:44
#19252
15K
9.32 mi11:51:081:20:508:4026:38
8:34
#18883
20K
12.43 mi12:18:001:47:428:4026:52
8:39
#18615
Half
13.11 mi12:23:451:53:278:395:45
8:26
#18541
25K
15.53 mi12:44:112:13:538:3720:26
8:26
#18065
30K
18.64 mi13:10:082:39:508:3425:57
8:21
#17209
20M
20.00 mi13:21:282:51:108:3311:20
8:20
#16897
21M
21.00 mi13:30:193:00:018:348:51
8:51
#16640
35K
21.75 mi13:36:143:05:568:335:55
7:55
#16447
23M
23.00 mi13:46:363:16:188:3210:22
8:17
#16167
24M
24.00 mi13:54:313:24:138:317:55
7:55
#15940
40K
24.85 mi14:01:143:30:568:296:43
7:51
#15681
25.2M
25.20 mi14:04:093:33:518:292:55
8:27
#15596
Finish
26.22 mi14:12:053:41:478:287:56
7:47
#15392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi189317158715818275(Top 69%)6657(Top 58%)6657(Top 136%)
10K6.21 mi3.10 mi19252-3217305-1477305-14719629(Top 74%)7464(Top 65%)7464(Top 153%)
15K9.32 mi3.11 mi18883+3697056+2497056+24918275(Top 69%)6657(Top 58%)6657(Top 136%)
20K12.43 mi3.11 mi18615+2686877+1796877+17917783(Top 67%)6386(Top 56%)6386(Top 131%)
Half13.11 mi0.68 mi18541+746827+506827+5017307(Top 65%)6053(Top 53%)6053(Top 124%)
25K15.53 mi2.42 mi18065+4766572+2556572+25515761(Top 59%)5291(Top 46%)5291(Top 108%)
30K18.64 mi3.11 mi17209+8566082+4906082+49013380(Top 50%)3969(Top 35%)3969(Top 81%)
20M20.00 mi1.36 mi16897+3125912+1705912+17012651(Top 48%)3671(Top 32%)3671(Top 75%)
21M21.00 mi1.00 mi16640+2575782+1305782+13012586(Top 47%)3740(Top 33%)3740(Top 77%)
35K21.75 mi0.75 mi16447+1935684+985684+9811545(Top 43%)3185(Top 28%)3185(Top 65%)
23M23.00 mi1.25 mi16167+2805542+1425542+14211794(Top 44%)3416(Top 30%)3416(Top 70%)
24M24.00 mi1.00 mi15940+2275436+1065436+10610718(Top 40%)2962(Top 26%)2962(Top 61%)
40K24.85 mi0.85 mi15681+2595292+1445292+1449107(Top 34%)2239(Top 20%)2239(Top 46%)
25.2M25.20 mi0.35 mi15596+855250+425250+429395(Top 35%)2454(Top 21%)2454(Top 50%)
Finish26.22 mi1.02 mi15392+2045142+1085142+10810621(Top 40%)3013(Top 26%)3013(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18275

Females

6657

F18-39

6657

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19629

Females

7464

F18-39

7464

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18275

Females

6657

F18-39

6657

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17783

Females

6386

F18-39

6386

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17307

Females

6053

F18-39

6053

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15761

Females

5291

F18-39

5291

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13380

Females

3969

F18-39

3969

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12651

Females

3671

F18-39

3671

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12586

Females

3740

F18-39

3740

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11545

Females

3185

F18-39

3185

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11794

Females

3416

F18-39

3416

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10718

Females

2962

F18-39

2962

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9107

Females

2239

F18-39

2239

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9395

Females

2454

F18-39

2454

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10621

Females

3013

F18-39

3013

Passing Analysis

Category:
Athletes Passed
4197
Passed By
658
Net Change
+3539
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18931
5K → 10K206527-321#18931#19252
10K → 15K42354+369#19252#18883
15K → 20K32153+268#18883#18615
20K → Half795+74#18615#18541
Half → 25K4782+476#18541#18065
25K → 30K8560+856#18065#17209
30K → 20M3120+312#17209#16897
20M → 21M2592+257#16897#16640
21M → 35K1952+193#16640#16447
35K → 23M2833+280#16447#16167
23M → 24M2270+227#16167#15940
24M → 40K2590+259#15940#15681
40K → 25.2M850+85#15681#15596
25.2M → Finish21410+204#15596#15392
TOTALS4197658+3539
📊

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