Boston Marathon logo
BOSTON MARATHON 2023

Lisa Boyd

Bib: 17810•F

OR

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 45%
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

Start
0:00:00
Race begins
5K· 3.11 mi
26:20
Rank: #17399
Start → 5K
26:20 | 8:29/mi
10K· 6.21 mi
52:05
Rank: #17087 (+312)
5K → 10K
25:45 | 8:17/mi
15K· 9.32 mi
1:17:50
Rank: #16856 (+231)
10K → 15K
25:45 | 8:17/mi
20K· 12.43 mi
1:44:37
Rank: #17061 (-205)
15K → 20K
26:47 | 8:37/mi
Half· 13.11 mi
1:50:23
Rank: #17082 (-21)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:11:08
Rank: #16985 (+97)
Half → 25K
20:45 | 8:33/mi
30K· 18.64 mi
2:38:46
Rank: #16871 (+114)
25K → 30K
27:38 | 8:54/mi
20M
2:50:11
Rank: #16593 (+278)
30K → 20M
11:25 | 8:24/mi
21M
2:58:57
Rank: #16320 (+273)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
3:05:06
Rank: #16218 (+102)
21M → 35K
6:09 | 8:13/mi
23M
3:15:38
Rank: #15992 (+226)
35K → 23M
10:32 | 8:25/mi
24M
3:23:44
Rank: #15800 (+192)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:30:43
Rank: #15635 (+165)
24M → 40K
6:59 | 8:10/mi
25.2M
3:33:39
Rank: #15549 (+86)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:41:35
Rank: #15329 (+220)
25.2M → Finish
7:56 | 7:47/mi

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 Half⚖️ Balanced
Distance13.11 mi
Time1:50:23
Pace8:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:51:12
Pace8:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2726:208:2926:20
8:29
-
10K
6.21 mi11:47:1252:058:2325:45
8:17
-0:12
15K
9.32 mi12:12:571:17:508:2125:45
8:17
0:00
20K
12.43 mi12:39:441:44:378:2526:47
8:37
+0:20
Half
13.11 mi12:45:301:50:238:255:46
8:27
-0:10
25K
15.53 mi13:06:152:11:088:2620:45
8:33
+0:06
30K
18.64 mi13:33:532:38:468:3127:38
8:54
+0:21
20M
20.00 mi13:45:182:50:118:3111:25
8:24
-0:30
21M
21.00 mi13:54:042:58:578:318:46
8:46
+0:22
35K
21.75 mi14:00:133:05:068:316:09
8:13
-0:33
23M
23.00 mi14:10:453:15:388:3010:32
8:25
+0:12
24M
24.00 mi14:18:513:23:448:298:06
8:06
-0:19
40K
24.85 mi14:25:503:30:438:296:59
8:10
+0:04
25.2M
25.20 mi14:28:463:33:398:292:56
8:30
+0:20
Finish
26.22 mi14:36:423:41:358:277:56
7:47
-0:43

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

7:47 /mi

Average Pace

8:27 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:24

71% of race

Time at Steady Pace

1:03:11

29% 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 mi11:21:2726:208:2926:20
8:29
#17399
10K
6.21 mi11:47:1252:058:2325:45
8:17
#17087
15K
9.32 mi12:12:571:17:508:2125:45
8:17
#16856
20K
12.43 mi12:39:441:44:378:2526:47
8:37
#17061
Half
13.11 mi12:45:301:50:238:255:46
8:27
#17082
25K
15.53 mi13:06:152:11:088:2620:45
8:33
#16985
30K
18.64 mi13:33:532:38:468:3127:38
8:54
#16871
20M
20.00 mi13:45:182:50:118:3111:25
8:24
#16593
21M
21.00 mi13:54:042:58:578:318:46
8:46
#16320
35K
21.75 mi14:00:133:05:068:316:09
8:13
#16218
23M
23.00 mi14:10:453:15:388:3010:32
8:25
#15992
24M
24.00 mi14:18:513:23:448:298:06
8:06
#15800
40K
24.85 mi14:25:503:30:438:296:59
8:10
#15635
25.2M
25.20 mi14:28:463:33:398:292:56
8:30
#15549
Finish
26.22 mi14:36:423:41:358:277:56
7:47
#15329
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi173996194619416474(Top 62%)5578(Top 49%)5578(Top 462%)
10K6.21 mi3.10 mi17087+3125974+2205974+22016860(Top 63%)5783(Top 51%)5783(Top 479%)
15K9.32 mi3.11 mi16856+2315826+1485826+14816474(Top 62%)5578(Top 49%)5578(Top 462%)
20K12.43 mi3.11 mi17061-2055967-1415967-14117629(Top 66%)6301(Top 55%)6301(Top 522%)
Half13.11 mi0.68 mi17082-215980-135980-1317466(Top 66%)6149(Top 54%)6149(Top 509%)
25K15.53 mi2.42 mi16985+975933+475933+4716540(Top 62%)5742(Top 50%)5742(Top 476%)
30K18.64 mi3.11 mi16871+1145881+525881+5216626(Top 62%)5851(Top 51%)5851(Top 485%)
20M20.00 mi1.36 mi16593+2785752+1295752+12913060(Top 49%)3896(Top 34%)3896(Top 323%)
21M21.00 mi1.00 mi16320+2735609+1435609+14312113(Top 45%)3475(Top 30%)3475(Top 288%)
35K21.75 mi0.75 mi16218+1025564+455564+4513651(Top 51%)4386(Top 38%)4386(Top 363%)
23M23.00 mi1.25 mi15992+2265451+1135451+11312702(Top 48%)3915(Top 34%)3915(Top 324%)
24M24.00 mi1.00 mi15800+1925360+915360+9111990(Top 45%)3591(Top 31%)3591(Top 298%)
40K24.85 mi0.85 mi15635+1655266+945266+9411202(Top 42%)3272(Top 29%)3272(Top 271%)
25.2M25.20 mi0.35 mi15549+865220+465220+469708(Top 36%)2591(Top 23%)2591(Top 215%)
Finish26.22 mi1.02 mi15329+2205102+1185102+11810620(Top 40%)3012(Top 26%)3012(Top 250%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16474

Females

5578

F50-54

5578

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16860

Females

5783

F50-54

5783

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16474

Females

5578

F50-54

5578

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17629

Females

6301

F50-54

6301

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17466

Females

6149

F50-54

6149

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16540

Females

5742

F50-54

5742

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16626

Females

5851

F50-54

5851

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13060

Females

3896

F50-54

3896

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12113

Females

3475

F50-54

3475

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13651

Females

4386

F50-54

4386

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12702

Females

3915

F50-54

3915

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11990

Females

3591

F50-54

3591

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11202

Females

3272

F50-54

3272

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9708

Females

2591

F50-54

2591

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10620

Females

3012

F50-54

3012

Passing Analysis

Category:
Athletes Passed
2937
Passed By
867
Net Change
+2070
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17399
5K → 10K503191+312#17399#17087
10K → 15K338107+231#17087#16856
15K → 20K117322-205#16856#17061
20K → Half2647-21#17061#17082
Half → 25K15659+97#17082#16985
25K → 30K222108+114#16985#16871
30K → 20M2791+278#16871#16593
20M → 21M2741+273#16593#16320
21M → 35K1097+102#16320#16218
35K → 23M23610+226#16218#15992
23M → 24M1986+192#15992#15800
24M → 40K1672+165#15800#15635
40K → 25.2M882+86#15635#15549
25.2M → Finish2244+220#15549#15329
TOTALS2937867+2070
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing