Boston Marathon logo
BOSTON MARATHON 2023

Sarah Dawkins

Bib: 17578•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 38%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:12:32
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:36:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:52/mi
2:25:24
↑ 181↓ 1480.2%
20M
7:55/mi
2:36:10
↑ 64↓ 500.2%
21M
8:27/mi
2:44:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:50:26
↑ 17↓ 861.7%
23M
8:02/mi
3:00:29
↑ 23↓ 630.6%
24M
7:46/mi
3:08:15
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:15:04
↓ 200.3%
25.2M
8:25/mi
3:17:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:25:44
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:02
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:43:42
Pace7:55 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1724:377:5524:37
7:55
-
10K
6.21 mi11:39:1748:377:4924:00
7:43
-0:12
15K
9.32 mi12:03:121:12:327:4723:55
7:42
-0:01
20K
12.43 mi12:27:261:36:467:4724:14
7:48
+0:06
Half
13.11 mi12:32:421:42:027:475:16
7:43
-0:05
25K
15.53 mi12:51:392:00:597:4718:57
7:49
+0:06
30K
18.64 mi13:16:042:25:247:4824:25
7:52
+0:03
20M
20.00 mi13:26:502:36:107:4810:46
7:55
+0:03
21M
21.00 mi13:35:172:44:377:508:27
8:27
+0:32
35K
21.75 mi13:41:062:50:267:505:49
7:46
-0:41
23M
23.00 mi13:51:093:00:297:5110:03
8:02
+0:16
24M
24.00 mi13:58:553:08:157:517:46
7:46
-0:16
40K
24.85 mi14:05:443:15:047:516:49
7:58
+0:12
25.2M
25.20 mi14:08:383:17:587:512:54
8:25
+0:27
Finish
26.22 mi14:16:243:25:447:517:46
7:37
-0:48

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

7:37 /mi

Average Pace

7:51 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:23

94% of race

Time at Steady Pace

11:21

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /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 mi11:15:1724:377:5524:37
7:55
#13458
10K
6.21 mi11:39:1748:377:4924:00
7:43
#12923
15K
9.32 mi12:03:121:12:327:4723:55
7:42
#12514
20K
12.43 mi12:27:261:36:467:4724:14
7:48
#12283
Half
13.11 mi12:32:421:42:027:475:16
7:43
#12258
25K
15.53 mi12:51:392:00:597:4718:57
7:49
#12085
30K
18.64 mi13:16:042:25:247:4824:25
7:52
#11610
20M
20.00 mi13:26:502:36:107:4810:46
7:55
#11429
21M
21.00 mi13:35:172:44:377:508:27
8:27
#11321
35K
21.75 mi13:41:062:50:267:505:49
7:46
#11285
23M
23.00 mi13:51:093:00:297:5110:03
8:02
#11184
24M
24.00 mi13:58:553:08:157:517:46
7:46
#11108
40K
24.85 mi14:05:443:15:047:516:49
7:58
#11037
25.2M
25.20 mi14:08:383:17:587:512:54
8:25
#10977
Finish
26.22 mi14:16:243:25:447:517:46
7:37
#10893
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134583685368511839(Top 44%)2812(Top 25%)2812(Top 58%)
10K6.21 mi3.10 mi12923+5353398+2873398+28712475(Top 47%)3131(Top 27%)3131(Top 64%)
15K9.32 mi3.11 mi12514+4093183+2153183+21511839(Top 44%)2812(Top 25%)2812(Top 58%)
20K12.43 mi3.11 mi12283+2313082+1013082+10111758(Top 44%)2821(Top 25%)2821(Top 58%)
Half13.11 mi0.68 mi12258+253070+123070+1212062(Top 45%)2940(Top 26%)2940(Top 60%)
25K15.53 mi2.42 mi12085+1732987+832987+8311239(Top 42%)2615(Top 23%)2615(Top 54%)
30K18.64 mi3.11 mi11610+4752755+2322755+2329830(Top 37%)2083(Top 18%)2083(Top 43%)
20M20.00 mi1.36 mi11429+1812674+812674+819746(Top 37%)2132(Top 19%)2132(Top 44%)
21M21.00 mi1.00 mi11321+1082632+422632+4210203(Top 38%)2478(Top 22%)2478(Top 51%)
35K21.75 mi0.75 mi11285+362620+122620+1210514(Top 39%)2614(Top 23%)2614(Top 54%)
23M23.00 mi1.25 mi11184+1012597+232597+239961(Top 37%)2493(Top 22%)2493(Top 51%)
24M24.00 mi1.00 mi11108+762581+162581+169566(Top 36%)2376(Top 21%)2376(Top 49%)
40K24.85 mi0.85 mi11037+712575+62575+69905(Top 37%)2603(Top 23%)2603(Top 53%)
25.2M25.20 mi0.35 mi10977+602555+202555+209046(Top 34%)2272(Top 20%)2272(Top 47%)
Finish26.22 mi1.02 mi10893+842540+152540+159449(Top 35%)2454(Top 21%)2454(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11839

Females

2812

F18-39

2812

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12475

Females

3131

F18-39

3131

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11839

Females

2812

F18-39

2812

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11758

Females

2821

F18-39

2821

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12062

Females

2940

F18-39

2940

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11239

Females

2615

F18-39

2615

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9830

Females

2083

F18-39

2083

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9746

Females

2132

F18-39

2132

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10203

Females

2478

F18-39

2478

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10514

Females

2614

F18-39

2614

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9961

Females

2493

F18-39

2493

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9566

Females

2376

F18-39

2376

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9905

Females

2603

F18-39

2603

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9046

Females

2272

F18-39

2272

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9449

Females

2454

F18-39

2454

Passing Analysis

Category:
Athletes Passed
3130
Passed By
565
Net Change
+2565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13458
5K → 10K656121+535#13458#12923
10K → 15K47566+409#12923#12514
15K → 20K30978+231#12514#12283
20K → Half4419+25#12283#12258
Half → 25K21340+173#12258#12085
25K → 30K49217+475#12085#11610
30K → 20M19918+181#11610#11429
20M → 21M14638+108#11429#11321
21M → 35K6630+36#11321#11285
35K → 23M14039+101#11285#11184
23M → 24M11438+76#11184#11108
24M → 40K9928+71#11108#11037
40K → 25.2M666+60#11037#10977
25.2M → Finish11127+84#10977#10893
TOTALS3130565+2565
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing