Boston Marathon logo
BOSTON MARATHON 2023

Leyla Porteous

Bib: 19943•F

NC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Masters (Masters Women)
#0 / 6539
Top 31%
Division (F45-49)
#0 / 1817
Top 35%
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
8:27/mi
26:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
52:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:17:46
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:43:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:49:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:09:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:36:25
↑ 181↓ 1480.2%
20M
8:44/mi
2:48:17
↑ 64↓ 500.2%
21M
9:00/mi
2:57:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:03:29
↑ 17↓ 861.7%
23M
8:30/mi
3:14:07
↑ 23↓ 630.6%
24M
8:20/mi
3:22:27
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:29:36
↓ 200.3%
25.2M
8:33/mi
3:32:33
↑ 13↓ 160.2%
Finish· 26.22 mi
7:49/mi
3:40:31
↑ 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
Time1:49:18
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:51:13
Pace8:29 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1226:148:2726:14
8:27
-
10K
6.21 mi11:44:0052:028:2225:48
8:18
-0:09
15K
9.32 mi12:09:441:17:468:2125:44
8:17
-0:01
20K
12.43 mi12:35:381:43:408:2125:54
8:20
+0:03
Half
13.11 mi12:41:161:49:188:205:38
8:15
-0:05
25K
15.53 mi13:01:292:09:318:2020:13
8:20
+0:05
30K
18.64 mi13:28:232:36:258:2326:54
8:39
+0:19
20M
20.00 mi13:40:152:48:178:2511:52
8:44
+0:05
21M
21.00 mi13:49:152:57:178:279:00
9:00
+0:16
35K
21.75 mi13:55:273:03:298:266:12
8:17
-0:43
23M
23.00 mi14:06:053:14:078:2610:38
8:30
+0:13
24M
24.00 mi14:14:253:22:278:268:20
8:20
-0:10
40K
24.85 mi14:21:343:29:368:267:09
8:22
+0:02
25.2M
25.20 mi14:24:313:32:338:262:57
8:33
+0:11
Finish
26.22 mi14:32:293:40:318:257:58
7:49
-0:44

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

7:49 /mi

Average Pace

8:25 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:45

78% of race

Time at Steady Pace

47:46

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:18:1226:148:2726:14
8:27
#17176
10K
6.21 mi11:44:0052:028:2225:48
8:18
#17021
15K
9.32 mi12:09:441:17:468:2125:44
8:17
#16808
20K
12.43 mi12:35:381:43:408:2125:54
8:20
#16566
Half
13.11 mi12:41:161:49:188:205:38
8:15
#16551
25K
15.53 mi13:01:292:09:318:2020:13
8:20
#16307
30K
18.64 mi13:28:232:36:258:2326:54
8:39
#16086
20M
20.00 mi13:40:152:48:178:2511:52
8:44
#15999
21M
21.00 mi13:49:152:57:178:279:00
9:00
#15810
35K
21.75 mi13:55:273:03:298:266:12
8:17
#15731
23M
23.00 mi14:06:053:14:078:2610:38
8:30
#15562
24M
24.00 mi14:14:253:22:278:268:20
8:20
#15460
40K
24.85 mi14:21:343:29:368:267:09
8:22
#15344
25.2M
25.20 mi14:24:313:32:338:262:57
8:33
#15248
Finish
26.22 mi14:32:293:40:318:257:58
7:49
#15072
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi171766046604616432(Top 62%)5551(Top 49%)5551(Top 306%)
10K6.21 mi3.10 mi17021+1555929+1175929+11716953(Top 64%)5843(Top 51%)5843(Top 322%)
15K9.32 mi3.11 mi16808+2135798+1315798+13116432(Top 62%)5551(Top 49%)5551(Top 306%)
20K12.43 mi3.11 mi16566+2425656+1425656+14215853(Top 60%)5255(Top 46%)5255(Top 289%)
Half13.11 mi0.68 mi16551+155645+115645+1116224(Top 61%)5425(Top 47%)5425(Top 299%)
25K15.53 mi2.42 mi16307+2445515+1305515+13015194(Top 57%)4958(Top 43%)4958(Top 273%)
30K18.64 mi3.11 mi16086+2215425+905425+9015276(Top 57%)5101(Top 45%)5101(Top 281%)
20M20.00 mi1.36 mi15999+875390+355390+3515072(Top 57%)5039(Top 44%)5039(Top 277%)
21M21.00 mi1.00 mi15810+1895306+845306+8413449(Top 51%)4194(Top 37%)4194(Top 231%)
35K21.75 mi0.75 mi15731+795271+355271+3514062(Top 53%)4598(Top 40%)4598(Top 253%)
23M23.00 mi1.25 mi15562+1695203+685203+6813206(Top 50%)4191(Top 37%)4191(Top 231%)
24M24.00 mi1.00 mi15460+1025152+515152+5113473(Top 51%)4383(Top 38%)4383(Top 241%)
40K24.85 mi0.85 mi15344+1165088+645088+6412518(Top 47%)3959(Top 35%)3959(Top 218%)
25.2M25.20 mi0.35 mi15248+965033+555033+5510016(Top 38%)2732(Top 24%)2732(Top 150%)
Finish26.22 mi1.02 mi15072+1764951+824951+8210863(Top 41%)3137(Top 27%)3137(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16432

Females

5551

F45-49

5551

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16953

Females

5843

F45-49

5843

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16432

Females

5551

F45-49

5551

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15853

Females

5255

F45-49

5255

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16224

Females

5425

F45-49

5425

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15194

Females

4958

F45-49

4958

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15276

Females

5101

F45-49

5101

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15072

Females

5039

F45-49

5039

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13449

Females

4194

F45-49

4194

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14062

Females

4598

F45-49

4598

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13206

Females

4191

F45-49

4191

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13473

Females

4383

F45-49

4383

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12518

Females

3959

F45-49

3959

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10016

Females

2732

F45-49

2732

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10863

Females

3137

F45-49

3137

Passing Analysis

Category:
Athletes Passed
2774
Passed By
670
Net Change
+2104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17176
5K → 10K401246+155#17176#17021
10K → 15K328115+213#17021#16808
15K → 20K30866+242#16808#16566
20K → Half4328+15#16566#16551
Half → 25K28036+244#16551#16307
25K → 30K29069+221#16307#16086
30K → 20M12235+87#16086#15999
20M → 21M19910+189#15999#15810
21M → 35K9415+79#15810#15731
35K → 23M18213+169#15731#15562
23M → 24M11614+102#15562#15460
24M → 40K13014+116#15460#15344
40K → 25.2M971+96#15344#15248
25.2M → Finish1848+176#15248#15072
TOTALS2774670+2104
📊

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