Boston Marathon logo
BOSTON MARATHON 2023

Lori Mcintosh

Bib: 20094•F

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 33%
Division (F50-54)
#0 / 1207
Top 25%
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
8:28/mi
26:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:24/mi
52:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:18:22
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:44:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:20/mi
1:49:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:10:10
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:36:27
↑ 181↓ 1480.2%
20M
8:34/mi
2:48:05
↑ 64↓ 500.2%
21M
8:57/mi
2:57:02
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
3:03:17
↑ 17↓ 861.7%
23M
8:34/mi
3:14:00
↑ 23↓ 630.6%
24M
8:23/mi
3:22:23
↓ 821.3%
40K· 24.85 mi
8:30/mi
3:29:39
↓ 200.3%
25.2M
9:17/mi
3:32:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:21/mi
3:41:22
↑ 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
Time1:49:56
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:51:26
Pace8:30 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4926:198:2826:19
8:28
-
10K
6.21 mi11:44:5552:258:2626:06
8:24
-0:04
15K
9.32 mi12:10:521:18:228:2425:57
8:21
-0:03
20K
12.43 mi12:36:451:44:158:2325:53
8:20
-0:01
Half
13.11 mi12:42:261:49:568:235:41
8:20
0:00
25K
15.53 mi13:02:402:10:108:2320:14
8:21
+0:01
30K
18.64 mi13:28:572:36:278:2426:17
8:28
+0:07
20M
20.00 mi13:40:352:48:058:2411:38
8:34
+0:06
21M
21.00 mi13:49:322:57:028:268:57
8:57
+0:23
35K
21.75 mi13:55:473:03:178:266:15
8:21
-0:36
23M
23.00 mi14:06:303:14:008:2610:43
8:34
+0:13
24M
24.00 mi14:14:533:22:238:268:23
8:23
-0:11
40K
24.85 mi14:22:093:29:398:267:16
8:30
+0:07
25.2M
25.20 mi14:25:213:32:518:273:12
9:17
+0:47
Finish
26.22 mi14:33:523:41:228:278:31
8:21
-0:56

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

8:20 /mi

Average Pace

8:27 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:38:10

99% of race

Time at Steady Pace

3:12

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:27 /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 mi11:18:4926:198:2826:19
8:28
#17363
10K
6.21 mi11:44:5552:258:2626:06
8:24
#17444
15K
9.32 mi12:10:521:18:228:2425:57
8:21
#17244
20K
12.43 mi12:36:451:44:158:2325:53
8:20
#16850
Half
13.11 mi12:42:261:49:568:235:41
8:20
#16855
25K
15.53 mi13:02:402:10:108:2320:14
8:21
#16601
30K
18.64 mi13:28:572:36:278:2426:17
8:28
#16105
20M
20.00 mi13:40:352:48:058:2411:38
8:34
#15930
21M
21.00 mi13:49:322:57:028:268:57
8:57
#15727
35K
21.75 mi13:55:473:03:178:266:15
8:21
#15669
23M
23.00 mi14:06:303:14:008:2610:43
8:34
#15534
24M
24.00 mi14:14:533:22:238:268:23
8:23
#15441
40K
24.85 mi14:22:093:29:398:267:16
8:30
#15362
25.2M
25.20 mi14:25:213:32:518:273:12
9:17
#15323
Finish
26.22 mi14:33:523:41:228:278:31
8:21
#15273
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi173636168616816872(Top 63%)5832(Top 51%)5832(Top 483%)
10K6.21 mi3.10 mi17444-816191-236191-2317591(Top 66%)6235(Top 55%)6235(Top 517%)
15K9.32 mi3.11 mi17244+2006061+1306061+13016872(Top 63%)5832(Top 51%)5832(Top 483%)
20K12.43 mi3.11 mi16850+3945834+2275834+22715810(Top 59%)5232(Top 46%)5232(Top 433%)
Half13.11 mi0.68 mi16855-55833+15833+116682(Top 63%)5693(Top 50%)5693(Top 472%)
25K15.53 mi2.42 mi16601+2545698+1355698+13515239(Top 57%)4983(Top 44%)4983(Top 413%)
30K18.64 mi3.11 mi16105+4965437+2615437+26114063(Top 53%)4371(Top 38%)4371(Top 362%)
20M20.00 mi1.36 mi15930+1755358+795358+7914035(Top 53%)4435(Top 39%)4435(Top 367%)
21M21.00 mi1.00 mi15727+2035259+995259+9913157(Top 49%)4038(Top 35%)4038(Top 335%)
35K21.75 mi0.75 mi15669+585237+225237+2214477(Top 54%)4829(Top 42%)4829(Top 400%)
23M23.00 mi1.25 mi15534+1355188+495188+4913614(Top 51%)4409(Top 39%)4409(Top 365%)
24M24.00 mi1.00 mi15441+935136+525136+5213806(Top 52%)4564(Top 40%)4564(Top 378%)
40K24.85 mi0.85 mi15362+795100+365100+3613373(Top 50%)4409(Top 39%)4409(Top 365%)
25.2M25.20 mi0.35 mi15323+395087+135087+1314151(Top 53%)4835(Top 42%)4835(Top 401%)
Finish26.22 mi1.02 mi15273+505066+215066+2114482(Top 54%)4990(Top 44%)4990(Top 413%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16872

Females

5832

F50-54

5832

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17591

Females

6235

F50-54

6235

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16872

Females

5832

F50-54

5832

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15810

Females

5232

F50-54

5232

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16682

Females

5693

F50-54

5693

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15239

Females

4983

F50-54

4983

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14063

Females

4371

F50-54

4371

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14035

Females

4435

F50-54

4435

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13157

Females

4038

F50-54

4038

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14477

Females

4829

F50-54

4829

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13614

Females

4409

F50-54

4409

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13806

Females

4564

F50-54

4564

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13373

Females

4409

F50-54

4409

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14151

Females

4835

F50-54

4835

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14482

Females

4990

F50-54

4990

Passing Analysis

Category:
Athletes Passed
2794
Passed By
704
Net Change
+2090
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17363
5K → 10K266347-81#17363#17444
10K → 15K308108+200#17444#17244
15K → 20K42935+394#17244#16850
20K → Half2631-5#16850#16855
Half → 25K27521+254#16855#16601
25K → 30K50812+496#16601#16105
30K → 20M18813+175#16105#15930
20M → 21M21613+203#15930#15727
21M → 35K7012+58#15727#15669
35K → 23M15823+135#15669#15534
23M → 24M10714+93#15534#15441
24M → 40K10425+79#15441#15362
40K → 25.2M4910+39#15362#15323
25.2M → Finish9040+50#15323#15273
TOTALS2794704+2090
📊

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