Boston Marathon logo
BOSTON MARATHON 2023

Liza Hoffman

Bib: 23149•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:44
Rank: #18270
Start → 5K
26:44 | 8:36/mi
10K· 6.21 mi
52:49
Rank: #17915 (+355)
5K → 10K
26:05 | 8:24/mi
15K· 9.32 mi
1:19:40
Rank: #18158 (-243)
10K → 15K
26:51 | 8:39/mi
20K· 12.43 mi
1:47:18
Rank: #18408 (-250)
15K → 20K
27:38 | 8:54/mi
Half· 13.11 mi
1:53:16
Rank: #18454 (-46)
20K → Half
5:58 | 8:45/mi
25K· 15.53 mi
2:15:06
Rank: #18556 (-102)
Half → 25K
21:50 | 9:00/mi
30K· 18.64 mi
2:43:44
Rank: #18481 (+75)
25K → 30K
28:38 | 9:13/mi
20M
2:56:33
Rank: #18482 (-1)
30K → 20M
12:49 | 9:26/mi
21M
3:06:42
Rank: #18490 (-8)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:13:29
Rank: #18474 (+16)
21M → 35K
6:47 | 9:04/mi
23M
3:24:50
Rank: #18338 (+136)
35K → 23M
11:21 | 9:04/mi
24M
3:33:51
Rank: #18294 (+44)
23M → 24M
9:01 | 9:01/mi
40K· 24.85 mi
3:41:38
Rank: #18245 (+49)
24M → 40K
7:47 | 9:06/mi
25.2M
3:45:05
Rank: #18233 (+12)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:54:06
Rank: #18193 (+40)
25.2M → Finish
9:01 | 8:51/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 HalfFaster
Distance13.11 mi
Time1:53:16
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:00:50
Pace9:13 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1826:448:3626:44
8:36
-
10K
6.21 mi11:48:2352:498:3026:05
8:24
-0:12
15K
9.32 mi12:15:141:19:408:3326:51
8:39
+0:15
20K
12.43 mi12:42:521:47:188:3827:38
8:54
+0:15
Half
13.11 mi12:48:501:53:168:385:58
8:45
-0:09
25K
15.53 mi13:10:402:15:068:4221:50
9:00
+0:15
30K
18.64 mi13:39:182:43:448:4728:38
9:13
+0:13
20M
20.00 mi13:52:072:56:338:5012:49
9:26
+0:13
21M
21.00 mi14:02:163:06:428:5310:09
10:09
+0:43
35K
21.75 mi14:09:033:13:298:546:47
9:04
-1:05
23M
23.00 mi14:20:243:24:508:5411:21
9:04
0:00
24M
24.00 mi14:29:253:33:518:559:01
9:01
-0:03
40K
24.85 mi14:37:123:41:388:557:47
9:06
+0:05
25.2M
25.20 mi14:40:393:45:058:563:27
10:00
+0:54
Finish
26.22 mi14:49:403:54:068:569:01
8:51
-1:09

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

8:24 /mi

Average Pace

8:56 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:38

37% of race

Time at Steady Pace

2:02:03

52% of race

Time at Slower Pace

26:25

11% of race

Average Pace: 8:56 /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 mi11:22:1826:448:3626:44
8:36
#18270
10K
6.21 mi11:48:2352:498:3026:05
8:24
#17915
15K
9.32 mi12:15:141:19:408:3326:51
8:39
#18158
20K
12.43 mi12:42:521:47:188:3827:38
8:54
#18408
Half
13.11 mi12:48:501:53:168:385:58
8:45
#18454
25K
15.53 mi13:10:402:15:068:4221:50
9:00
#18556
30K
18.64 mi13:39:182:43:448:4728:38
9:13
#18481
20M
20.00 mi13:52:072:56:338:5012:49
9:26
#18482
21M
21.00 mi14:02:163:06:428:5310:09
10:09
#18490
35K
21.75 mi14:09:033:13:298:546:47
9:04
#18474
23M
23.00 mi14:20:243:24:508:5411:21
9:04
#18338
24M
24.00 mi14:29:253:33:518:559:01
9:01
#18294
40K
24.85 mi14:37:123:41:388:557:47
9:06
#18245
25.2M
25.20 mi14:40:393:45:058:563:27
10:00
#18233
Finish
26.22 mi14:49:403:54:068:569:01
8:51
#18193
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi182706721672118699(Top 70%)6922(Top 61%)6922(Top 573%)
10K6.21 mi3.10 mi17915+3556477+2446477+24417574(Top 66%)6229(Top 55%)6229(Top 516%)
15K9.32 mi3.11 mi18158-2436622-1456622-14518699(Top 70%)6922(Top 61%)6922(Top 573%)
20K12.43 mi3.11 mi18408-2506756-1346756-13419184(Top 72%)7199(Top 63%)7199(Top 596%)
Half13.11 mi0.68 mi18454-466779-236779-2319211(Top 72%)7202(Top 63%)7202(Top 597%)
25K15.53 mi2.42 mi18556-1026865-866865-8618979(Top 71%)7115(Top 62%)7115(Top 589%)
30K18.64 mi3.11 mi18481+756854+116854+1118239(Top 69%)6785(Top 59%)6785(Top 562%)
20M20.00 mi1.36 mi18482-16855-16855-118601(Top 70%)7080(Top 62%)7080(Top 587%)
21M21.00 mi1.00 mi18490-86872-176872-1718553(Top 70%)7081(Top 62%)7081(Top 587%)
35K21.75 mi0.75 mi18474+166873-16873-118194(Top 68%)6946(Top 61%)6946(Top 575%)
23M23.00 mi1.25 mi18338+1366813+606813+6016405(Top 62%)5977(Top 52%)5977(Top 495%)
24M24.00 mi1.00 mi18294+446797+166797+1617335(Top 65%)6541(Top 57%)6541(Top 542%)
40K24.85 mi0.85 mi18245+496783+146783+1416672(Top 63%)6225(Top 54%)6225(Top 516%)
25.2M25.20 mi0.35 mi18233+126778+56778+517450(Top 66%)6683(Top 59%)6683(Top 554%)
Finish26.22 mi1.02 mi18193+406762+166762+1617288(Top 65%)6529(Top 57%)6529(Top 541%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18699

Females

6922

F50-54

6922

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17574

Females

6229

F50-54

6229

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18699

Females

6922

F50-54

6922

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19184

Females

7199

F50-54

7199

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19211

Females

7202

F50-54

7202

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18979

Females

7115

F50-54

7115

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18239

Females

6785

F50-54

6785

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18601

Females

7080

F50-54

7080

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18553

Females

7081

F50-54

7081

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18194

Females

6946

F50-54

6946

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16405

Females

5977

F50-54

5977

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17335

Females

6541

F50-54

6541

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16672

Females

6225

F50-54

6225

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17450

Females

6683

F50-54

6683

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

17288

Females

6529

F50-54

6529

Passing Analysis

Category:
Athletes Passed
1692
Passed By
1615
Net Change
+77
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18270
5K → 10K535180+355#18270#17915
10K → 15K109352-243#17915#18158
15K → 20K95345-250#18158#18408
20K → Half1460-46#18408#18454
Half → 25K99201-102#18454#18556
25K → 30K206131+75#18556#18481
30K → 20M8687-1#18481#18482
20M → 21M8391-8#18482#18490
21M → 35K5640+16#18490#18474
35K → 23M15822+136#18474#18338
23M → 24M7430+44#18338#18294
24M → 40K7728+49#18294#18245
40K → 25.2M3321+12#18245#18233
25.2M → Finish6727+40#18233#18193
TOTALS16921615+77
📊

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