Boston Marathon logo
BOSTON MARATHON 2023

Rose Leith

Bib: 23854•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 31%
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
8:55/mi
27:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
54:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:51/mi
1:21:56
↑ 67↓ 78
20K· 12.43 mi
9:06/mi
1:50:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:56:12
↑ 19↓ 370.5%
25K· 15.53 mi
9:26/mi
2:19:05
↑ 66↓ 880.2%
30K· 18.64 mi
9:52/mi
2:49:43
↑ 181↓ 1480.2%
20M
9:46/mi
3:03:00
↑ 64↓ 500.2%
21M
10:43/mi
3:13:43
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:20:43
↑ 17↓ 861.7%
23M
9:52/mi
3:33:04
↑ 23↓ 630.6%
24M
9:27/mi
3:42:31
↓ 821.3%
40K· 24.85 mi
9:45/mi
3:50:51
↓ 200.3%
25.2M
10:15/mi
3:54:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:03/mi
4:03:36
↑ 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
Time1:56:12
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:07:24
Pace9:43 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5527:418:5527:41
8:55
-
10K
6.21 mi11:49:4154:278:4626:46
8:37
-0:18
15K
9.32 mi12:17:101:21:568:4727:29
8:51
+0:14
20K
12.43 mi12:45:251:50:118:5228:15
9:06
+0:15
Half
13.11 mi12:51:261:56:128:526:01
8:49
-0:17
25K
15.53 mi13:14:192:19:058:5722:53
9:26
+0:37
30K
18.64 mi13:44:572:49:439:0630:38
9:52
+0:26
20M
20.00 mi13:58:143:03:009:0913:17
9:46
-0:06
21M
21.00 mi14:08:573:13:439:1310:43
10:43
+0:57
35K
21.75 mi14:15:573:20:439:147:00
9:21
-1:22
23M
23.00 mi14:28:183:33:049:1612:21
9:52
+0:31
24M
24.00 mi14:37:453:42:319:169:27
9:27
-0:25
40K
24.85 mi14:46:053:50:519:178:20
9:45
+0:18
25.2M
25.20 mi14:49:373:54:239:183:32
10:15
+0:30
Finish
26.22 mi14:58:504:03:369:189:13
9:03
-1:12

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

8:37 /mi

Average Pace

9:18 /mi

Slowest Pace

10:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:25

51% of race

Time at Steady Pace

39:20

16% of race

Time at Slower Pace

1:18:51

32% of race

Average Pace: 9:17 /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 mi11:22:5527:418:5527:41
8:55
#20051
10K
6.21 mi11:49:4154:278:4626:46
8:37
#19479
15K
9.32 mi12:17:101:21:568:4727:29
8:51
#19559
20K
12.43 mi12:45:251:50:118:5228:15
9:06
#19676
Half
13.11 mi12:51:261:56:128:526:01
8:49
#19682
25K
15.53 mi13:14:192:19:058:5722:53
9:26
#19907
30K
18.64 mi13:44:572:49:439:0630:38
9:52
#20075
20M
20.00 mi13:58:143:03:009:0913:17
9:46
#20045
21M
21.00 mi14:08:573:13:439:1310:43
10:43
#20051
35K
21.75 mi14:15:573:20:439:147:00
9:21
#20018
23M
23.00 mi14:28:183:33:049:1612:21
9:52
#19996
24M
24.00 mi14:37:453:42:319:169:27
9:27
#19962
40K
24.85 mi14:46:053:50:519:178:20
9:45
#19935
25.2M
25.20 mi14:49:373:54:239:183:32
10:15
#19912
Finish
26.22 mi14:58:504:03:369:189:13
9:03
#19846
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi200517847784719785(Top 74%)7558(Top 66%)7558(Top 1434%)
10K6.21 mi3.10 mi19479+5727450+3977450+39718934(Top 71%)7048(Top 62%)7048(Top 1337%)
15K9.32 mi3.11 mi19559-807484-347484-3419785(Top 74%)7558(Top 66%)7558(Top 1434%)
20K12.43 mi3.11 mi19676-1177530-467530-4620117(Top 76%)7737(Top 68%)7737(Top 1468%)
Half13.11 mi0.68 mi19682-67527+37527+319638(Top 74%)7466(Top 65%)7466(Top 1417%)
25K15.53 mi2.42 mi19907-2257658-1317658-13120634(Top 78%)8066(Top 71%)8066(Top 1531%)
30K18.64 mi3.11 mi20075-1687768-1107768-11020644(Top 78%)8132(Top 71%)8132(Top 1543%)
20M20.00 mi1.36 mi20045+307771-37771-319786(Top 74%)7741(Top 68%)7741(Top 1469%)
21M21.00 mi1.00 mi20051-67775-47775-420190(Top 76%)8027(Top 70%)8027(Top 1523%)
35K21.75 mi0.75 mi20018+337764+117764+1119393(Top 73%)7601(Top 67%)7601(Top 1442%)
23M23.00 mi1.25 mi19996+227767-37767-319611(Top 74%)7746(Top 68%)7746(Top 1470%)
24M24.00 mi1.00 mi19962+347751+167751+1619063(Top 72%)7483(Top 66%)7483(Top 1420%)
40K24.85 mi0.85 mi19935+277743+87743+819214(Top 72%)7613(Top 67%)7613(Top 1445%)
25.2M25.20 mi0.35 mi19912+237732+117732+1118337(Top 69%)7146(Top 63%)7146(Top 1356%)
Finish26.22 mi1.02 mi19846+667700+327700+3218223(Top 68%)7030(Top 62%)7030(Top 1334%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19785

Females

7558

F60-64

7558

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18934

Females

7048

F60-64

7048

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19785

Females

7558

F60-64

7558

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20117

Females

7737

F60-64

7737

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19638

Females

7466

F60-64

7466

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20634

Females

8066

F60-64

8066

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20644

Females

8132

F60-64

8132

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19786

Females

7741

F60-64

7741

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20190

Females

8027

F60-64

8027

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19393

Females

7601

F60-64

7601

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19611

Females

7746

F60-64

7746

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19063

Females

7483

F60-64

7483

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19214

Females

7613

F60-64

7613

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18337

Females

7146

F60-64

7146

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18223

Females

7030

F60-64

7030

Passing Analysis

Category:
Athletes Passed
1724
Passed By
1519
Net Change
+205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20051
5K → 10K694122+572#20051#19479
10K → 15K152232-80#19479#19559
15K → 20K124241-117#19559#19676
20K → Half3440-6#19676#19682
Half → 25K53278-225#19682#19907
25K → 30K110278-168#19907#20075
30K → 20M9565+30#20075#20045
20M → 21M7783-6#20045#20051
21M → 35K6027+33#20051#20018
35K → 23M7755+22#20018#19996
23M → 24M7339+34#19996#19962
24M → 40K6134+27#19962#19935
40K → 25.2M3411+23#19935#19912
25.2M → Finish8014+66#19912#19846
TOTALS17241519+205
📊

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