Boston Marathon logo
BOSTON MARATHON 2023

Laura Barbosa

Bib: 25789•F

MA

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

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
10:11/mi
31:38
↑ 97↓ 3451.5%
10K· 6.21 mi
11:06/mi
1:06:07
↑ 79↓ 1380.4%
15K· 9.32 mi
11:51/mi
1:42:57
↑ 67↓ 78
20K· 12.43 mi
12:29/mi
2:21:43
↑ 106↓ 860.1%
Half· 13.11 mi
11:38/mi
2:29:39
↑ 19↓ 370.5%
25K· 15.53 mi
12:45/mi
3:00:35
↑ 66↓ 880.2%
30K· 18.64 mi
12:59/mi
3:40:54
↑ 181↓ 1480.2%
20M
13:43/mi
3:59:33
↑ 64↓ 500.2%
21M
14:31/mi
4:14:04
↑ 106↓ 241.6%
35K· 21.75 mi
12:41/mi
4:23:33
↑ 17↓ 861.7%
23M
14:10/mi
4:41:17
↑ 23↓ 630.6%
24M
13:20/mi
4:54:37
↓ 821.3%
40K· 24.85 mi
14:08/mi
5:06:42
↓ 200.3%
25.2M
14:15/mi
5:11:37
↑ 13↓ 160.2%
Finish· 26.22 mi
12:15/mi
5:24:06
↑ 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
Time2:29:39
Pace11:25 /mi
2nd Half
Distance13.11 mi
Time2:54:27
Pace13:18 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4131:3810:1131:38
10:11
-
10K
6.21 mi12:22:101:06:0710:3834:29
11:06
+0:55
15K
9.32 mi12:59:001:42:5711:0336:50
11:51
+0:45
20K
12.43 mi13:37:462:21:4311:2438:46
12:29
+0:38
Half
13.11 mi13:45:422:29:3911:257:56
11:38
-0:51
25K
15.53 mi14:16:383:00:3511:3730:56
12:45
+1:07
30K
18.64 mi14:56:573:40:5411:5140:19
12:59
+0:14
20M
20.00 mi15:15:363:59:3311:5918:39
13:43
+0:44
21M
21.00 mi15:30:074:14:0412:0614:31
14:31
+0:48
35K
21.75 mi15:39:364:23:3312:079:29
12:41
-1:50
23M
23.00 mi15:57:204:41:1712:1417:44
14:10
+1:29
24M
24.00 mi16:10:404:54:3712:1713:20
13:20
-0:50
40K
24.85 mi16:22:455:06:4212:2012:05
14:08
+0:48
25.2M
25.20 mi16:27:405:11:3712:224:55
14:15
+0:07
Finish
26.22 mi16:40:095:24:0612:2212:29
12:15
-2:00

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

10:11 /mi

Average Pace

12:22 /mi

Slowest Pace

14:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:53

34% of race

Time at Steady Pace

2:25:19

45% of race

Time at Slower Pace

1:07:54

21% of race

Average Pace: 12:22 /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 mi11:47:4131:3810:1131:38
10:11
#23908
10K
6.21 mi12:22:101:06:0710:3834:29
11:06
#24987
15K
9.32 mi12:59:001:42:5711:0336:50
11:51
#25508
20K
12.43 mi13:37:462:21:4311:2438:46
12:29
#25709
Half
13.11 mi13:45:422:29:3911:257:56
11:38
#25703
25K
15.53 mi14:16:383:00:3511:3730:56
12:45
#25728
30K
18.64 mi14:56:573:40:5411:5140:19
12:59
#25681
20M
20.00 mi15:15:363:59:3311:5918:39
13:43
#25682
21M
21.00 mi15:30:074:14:0412:0614:31
14:31
#25674
35K
21.75 mi15:39:364:23:3312:079:29
12:41
#25668
23M
23.00 mi15:57:204:41:1712:1417:44
14:10
#25707
24M
24.00 mi16:10:404:54:3712:1713:20
13:20
#25716
40K
24.85 mi16:22:455:06:4212:2012:05
14:08
#25725
25.2M
25.20 mi16:27:405:11:3712:224:55
14:15
#25727
Finish
26.22 mi16:40:095:24:0612:2212:29
12:15
#25730
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi239089845984525970(Top 98%)11022(Top 96%)11022(Top 913%)
10K6.21 mi3.10 mi24987-107910426-58110426-58125564(Top 96%)10776(Top 94%)10776(Top 893%)
15K9.32 mi3.11 mi25508-52110741-31510741-31525970(Top 98%)11022(Top 96%)11022(Top 913%)
20K12.43 mi3.11 mi25709-20110874-13310874-13325953(Top 97%)11027(Top 97%)11027(Top 914%)
Half13.11 mi0.68 mi25703+610875-110875-125593(Top 96%)10841(Top 95%)10841(Top 898%)
25K15.53 mi2.42 mi25728-2510889-1410889-1425731(Top 97%)10923(Top 96%)10923(Top 905%)
30K18.64 mi3.11 mi25681+4710877+1210877+1225391(Top 95%)10789(Top 94%)10789(Top 894%)
20M20.00 mi1.36 mi25682-110880-310880-325682(Top 96%)10952(Top 96%)10952(Top 907%)
21M21.00 mi1.00 mi25674+810875+510875+525441(Top 96%)10830(Top 95%)10830(Top 897%)
35K21.75 mi0.75 mi25668+6108751087525335(Top 95%)10834(Top 95%)10834(Top 898%)
23M23.00 mi1.25 mi25707-3910905-3010905-3025927(Top 97%)11108(Top 97%)11108(Top 920%)
24M24.00 mi1.00 mi25716-910915-1010915-1025702(Top 97%)11025(Top 97%)11025(Top 913%)
40K24.85 mi0.85 mi25725-910922-710922-725756(Top 97%)11055(Top 97%)11055(Top 916%)
25.2M25.20 mi0.35 mi25727-2109221092225212(Top 95%)10794(Top 94%)10794(Top 894%)
Finish26.22 mi1.02 mi25730-310929-710929-725473(Top 96%)10902(Top 95%)10902(Top 903%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

25970

Females

11022

F50-54

11022

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25564

Females

10776

F50-54

10776

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

25970

Females

11022

F50-54

11022

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25953

Females

11027

F50-54

11027

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25593

Females

10841

F50-54

10841

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25731

Females

10923

F50-54

10923

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25391

Females

10789

F50-54

10789

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25682

Females

10952

F50-54

10952

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25441

Females

10830

F50-54

10830

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25335

Females

10834

F50-54

10834

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25927

Females

11108

F50-54

11108

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25702

Females

11025

F50-54

11025

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25756

Females

11055

F50-54

11055

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25212

Females

10794

F50-54

10794

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25473

Females

10902

F50-54

10902

Passing Analysis

Category:
Athletes Passed
302
Passed By
2124
Net Change
-1822
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23908
5K → 10K61085-1079#23908#24987
10K → 15K6527-521#24987#25508
15K → 20K29230-201#25508#25709
20K → Half1610+6#25709#25703
Half → 25K4772-25#25703#25728
25K → 30K8235+47#25728#25681
30K → 20M2425-1#25681#25682
20M → 21M2315+8#25682#25674
21M → 35K1610+6#25674#25668
35K → 23M1554-39#25668#25707
23M → 24M918-9#25707#25716
24M → 40K1019-9#25716#25725
40K → 25.2M46-2#25725#25727
25.2M → Finish1518-3#25727#25730
TOTALS3022124-1822
📊

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