Boston Marathon logo
BOSTON MARATHON 2023

Liesbeth Litjens

Bib: 20268•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 21%
Masters (Masters Women)
#0 / 6539
Top 9%
Division (F45-49)
#0 / 1817
Top 9%
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
7:49/mi
24:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
47:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:11:00
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:34:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:39:49
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:58:17
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:22:45
↑ 181↓ 1480.2%
20M
8:02/mi
2:33:40
↑ 64↓ 500.2%
21M
8:27/mi
2:42:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:13/mi
2:47:31
↑ 17↓ 861.7%
23M
8:10/mi
2:57:44
↑ 23↓ 630.6%
24M
7:54/mi
3:05:38
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:12:44
↓ 200.3%
25.2M
9:17/mi
3:15:56
↑ 13↓ 160.2%
Finish· 26.22 mi
8:24/mi
3:24:30
↑ 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
Time1:39:49
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:44:41
Pace7:59 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2124:167:4924:16
7:49
-
10K
6.21 mi11:39:4047:357:3923:19
7:30
-0:19
15K
9.32 mi12:03:051:11:007:3723:25
7:32
+0:02
20K
12.43 mi12:26:461:34:417:3723:41
7:37
+0:05
Half
13.11 mi12:31:541:39:497:375:08
7:31
-0:06
25K
15.53 mi12:50:221:58:177:3718:28
7:37
+0:06
30K
18.64 mi13:14:502:22:457:3924:28
7:53
+0:16
20M
20.00 mi13:25:452:33:407:4110:55
8:02
+0:09
21M
21.00 mi13:34:122:42:077:438:27
8:27
+0:25
35K
21.75 mi13:39:362:47:317:425:24
7:13
-1:14
23M
23.00 mi13:49:492:57:447:4410:13
8:10
+0:57
24M
24.00 mi13:57:433:05:387:447:54
7:54
-0:16
40K
24.85 mi14:04:493:12:447:457:06
8:18
+0:24
25.2M
25.20 mi14:08:013:15:567:473:12
9:17
+0:59
Finish
26.22 mi14:16:353:24:307:488:34
8:24
-0:53

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

7:13 /mi

Average Pace

7:48 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:25

49% of race

Time at Steady Pace

1:07:33

33% of race

Time at Slower Pace

37:32

18% of race

Average Pace: 7:48 /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 mi11:16:2124:167:4924:16
7:49
#12456
10K
6.21 mi11:39:4047:357:3923:19
7:30
#11418
15K
9.32 mi12:03:051:11:007:3723:25
7:32
#11089
20K
12.43 mi12:26:461:34:417:3723:41
7:37
#10863
Half
13.11 mi12:31:541:39:497:375:08
7:31
#10853
25K
15.53 mi12:50:221:58:177:3718:28
7:37
#10610
30K
18.64 mi13:14:502:22:457:3924:28
7:53
#10420
20M
20.00 mi13:25:452:33:407:4110:55
8:02
#10426
21M
21.00 mi13:34:122:42:077:438:27
8:27
#10394
35K
21.75 mi13:39:362:47:317:425:24
7:13
#10225
23M
23.00 mi13:49:492:57:447:4410:13
8:10
#10239
24M
24.00 mi13:57:433:05:387:447:54
7:54
#10225
40K
24.85 mi14:04:493:12:447:457:06
8:18
#10273
25.2M
25.20 mi14:08:013:15:567:473:12
9:17
#10339
Finish
26.22 mi14:16:353:24:307:488:34
8:24
#10511
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi124563127312710499(Top 39%)2075(Top 18%)2075(Top 114%)
10K6.21 mi3.10 mi11418+10382558+5692558+56910500(Top 39%)2057(Top 18%)2057(Top 113%)
15K9.32 mi3.11 mi11089+3292382+1762382+17610499(Top 39%)2075(Top 18%)2075(Top 114%)
20K12.43 mi3.11 mi10863+2262273+1092273+10910276(Top 39%)2037(Top 18%)2037(Top 112%)
Half13.11 mi0.68 mi10853+102265+82265+810480(Top 39%)2135(Top 19%)2135(Top 118%)
25K15.53 mi2.42 mi10610+2432151+1142151+1149691(Top 36%)1870(Top 16%)1870(Top 103%)
30K18.64 mi3.11 mi10420+1902111+402111+409952(Top 37%)2142(Top 19%)2142(Top 118%)
20M20.00 mi1.36 mi10426-62134-232134-2310533(Top 40%)2500(Top 22%)2500(Top 138%)
21M21.00 mi1.00 mi10394+322148-142148-1410199(Top 38%)2474(Top 22%)2474(Top 136%)
35K21.75 mi0.75 mi10225+1692073+752073+756703(Top 25%)1005(Top 9%)1005(Top 55%)
23M23.00 mi1.25 mi10239-142115-422115-4210903(Top 41%)2970(Top 26%)2970(Top 163%)
24M24.00 mi1.00 mi10225+142136-212136-2110536(Top 40%)2843(Top 25%)2843(Top 156%)
40K24.85 mi0.85 mi10273-482187-512187-5112074(Top 45%)3699(Top 32%)3699(Top 204%)
25.2M25.20 mi0.35 mi10339-662239-522239-5214089(Top 53%)4773(Top 42%)4773(Top 263%)
Finish26.22 mi1.02 mi10511-1722352-1132352-11314788(Top 56%)5137(Top 45%)5137(Top 283%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10499

Females

2075

F45-49

2075

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10500

Females

2057

F45-49

2057

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10499

Females

2075

F45-49

2075

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10276

Females

2037

F45-49

2037

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10480

Females

2135

F45-49

2135

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9691

Females

1870

F45-49

1870

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9952

Females

2142

F45-49

2142

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10533

Females

2500

F45-49

2500

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10199

Females

2474

F45-49

2474

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6703

Females

1005

F45-49

1005

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10903

Females

2970

F45-49

2970

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10536

Females

2843

F45-49

2843

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12074

Females

3699

F45-49

3699

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14089

Females

4773

F45-49

4773

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14788

Females

5137

F45-49

5137

Passing Analysis

Category:
Athletes Passed
2926*
Passed By
981
Net Change
+1945
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12456
5K → 10K108749+1038#12456#11418
10K → 15K39162+329#11418#11089
15K → 20K28357+226#11089#10863
20K → Half3525+10#10863#10853
Half → 25K26421+243#10853#10610
25K → 30K26878+190#10610#10420
30K → 20M70*76-6#10420#10426
20M → 21M10573+32#10426#10394
21M → 35K1701+169#10394#10225
35K → 23M7892-14#10225#10239
23M → 24M6955+14#10239#10225
24M → 40K55103-48#10225#10273
40K → 25.2M2086-66#10273#10339
25.2M → Finish31203-172#10339#10511
TOTALS2926*981+1945

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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