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BOSTON MARATHON 2023

Sarah Farnworth

Bib: 21677•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F50-54)
#0 / 1207
Top 21%
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
8:21/mi
25:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
51:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:17:30
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:43:13
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:48:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:09:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:35:26
↑ 181↓ 1480.2%
20M
8:31/mi
2:47:00
↑ 64↓ 500.2%
21M
8:52/mi
2:55:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:02:09
↑ 17↓ 861.7%
23M
8:26/mi
3:12:42
↑ 23↓ 630.6%
24M
8:22/mi
3:21:04
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:28:13
↓ 200.3%
25.2M
8:56/mi
3:31:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:39:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:51
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:50:43
Pace8:27 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1925:588:2125:58
8:21
-
10K
6.21 mi11:44:0651:458:2025:47
8:18
-0:03
15K
9.32 mi12:09:511:17:308:1925:45
8:17
-0:01
20K
12.43 mi12:35:341:43:138:1825:43
8:17
0:00
Half
13.11 mi12:41:121:48:518:185:38
8:15
-0:02
25K
15.53 mi13:01:252:09:048:1920:13
8:20
+0:05
30K
18.64 mi13:27:472:35:268:2026:22
8:29
+0:09
20M
20.00 mi13:39:212:47:008:2111:34
8:31
+0:02
21M
21.00 mi13:48:132:55:528:228:52
8:52
+0:21
35K
21.75 mi13:54:303:02:098:236:17
8:24
-0:28
23M
23.00 mi14:05:033:12:428:2310:33
8:26
+0:02
24M
24.00 mi14:13:253:21:048:238:22
8:22
-0:04
40K
24.85 mi14:20:343:28:138:237:09
8:22
0:00
25.2M
25.20 mi14:23:393:31:188:233:05
8:56
+0:34
Finish
26.22 mi14:31:553:39:348:238:16
8:07
-0:49

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

8:07 /mi

Average Pace

8:23 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:29

99% of race

Time at Steady Pace

3:05

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:18:1925:588:2125:58
8:21
#16574
10K
6.21 mi11:44:0651:458:2025:47
8:18
#16706
15K
9.32 mi12:09:511:17:308:1925:45
8:17
#16616
20K
12.43 mi12:35:341:43:138:1825:43
8:17
#16322
Half
13.11 mi12:41:121:48:518:185:38
8:15
#16303
25K
15.53 mi13:01:252:09:048:1920:13
8:20
#16088
30K
18.64 mi13:27:472:35:268:2026:22
8:29
#15743
20M
20.00 mi13:39:212:47:008:2111:34
8:31
#15559
21M
21.00 mi13:48:132:55:528:228:52
8:52
#15351
35K
21.75 mi13:54:303:02:098:236:17
8:24
#15309
23M
23.00 mi14:05:033:12:428:2310:33
8:26
#15147
24M
24.00 mi14:13:253:21:048:238:22
8:22
#15072
40K
24.85 mi14:20:343:28:138:237:09
8:22
#14958
25.2M
25.20 mi14:23:393:31:188:233:05
8:56
#14904
Finish
26.22 mi14:31:553:39:348:238:16
8:07
#14831
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi165745649564916469(Top 62%)5573(Top 49%)5573(Top 462%)
10K6.21 mi3.10 mi16706-1325712-635712-6316923(Top 64%)5823(Top 51%)5823(Top 482%)
15K9.32 mi3.11 mi16616+905671+415671+4116469(Top 62%)5573(Top 49%)5573(Top 462%)
20K12.43 mi3.11 mi16322+2945502+1695502+16915474(Top 58%)5013(Top 44%)5013(Top 415%)
Half13.11 mi0.68 mi16303+195492+105492+1016216(Top 61%)5417(Top 47%)5417(Top 449%)
25K15.53 mi2.42 mi16088+2155388+1045388+10415191(Top 57%)4955(Top 43%)4955(Top 411%)
30K18.64 mi3.11 mi15743+3455220+1685220+16814241(Top 53%)4479(Top 39%)4479(Top 371%)
20M20.00 mi1.36 mi15559+1845124+965124+9613726(Top 52%)4259(Top 37%)4259(Top 353%)
21M21.00 mi1.00 mi15351+2085026+985026+9812702(Top 48%)3798(Top 33%)3798(Top 315%)
35K21.75 mi0.75 mi15309+425011+155011+1514748(Top 55%)4962(Top 43%)4962(Top 411%)
23M23.00 mi1.25 mi15147+1624927+844927+8412790(Top 48%)3969(Top 35%)3969(Top 329%)
24M24.00 mi1.00 mi15072+754897+304897+3013678(Top 51%)4497(Top 39%)4497(Top 373%)
40K24.85 mi0.85 mi14958+1144852+454852+4512514(Top 47%)3955(Top 35%)3955(Top 328%)
25.2M25.20 mi0.35 mi14904+544828+244828+2412265(Top 46%)3878(Top 34%)3878(Top 321%)
Finish26.22 mi1.02 mi14831+734809+194809+1912892(Top 48%)4163(Top 36%)4163(Top 345%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16469

Females

5573

F50-54

5573

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16923

Females

5823

F50-54

5823

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16469

Females

5573

F50-54

5573

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15474

Females

5013

F50-54

5013

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16216

Females

5417

F50-54

5417

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15191

Females

4955

F50-54

4955

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14241

Females

4479

F50-54

4479

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13726

Females

4259

F50-54

4259

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12702

Females

3798

F50-54

3798

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14748

Females

4962

F50-54

4962

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12790

Females

3969

F50-54

3969

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13678

Females

4497

F50-54

4497

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12514

Females

3955

F50-54

3955

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12265

Females

3878

F50-54

3878

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12892

Females

4163

F50-54

4163

Passing Analysis

Category:
Athletes Passed
2580
Passed By
837
Net Change
+1743
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16574
5K → 10K244376-132#16574#16706
10K → 15K256166+90#16706#16616
15K → 20K34248+294#16616#16322
20K → Half4728+19#16322#16303
Half → 25K26651+215#16303#16088
25K → 30K38136+345#16088#15743
30K → 20M19410+184#15743#15559
20M → 21M2168+208#15559#15351
21M → 35K6523+42#15351#15309
35K → 23M17917+162#15309#15147
23M → 24M9722+75#15147#15072
24M → 40K12612+114#15072#14958
40K → 25.2M606+54#14958#14904
25.2M → Finish10734+73#14904#14831
TOTALS2580837+1743
📊

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