Boston Marathon logo
BOSTON MARATHON 2023

Alma Carlin

Bib: 16163•F

IL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 45%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:44
Rank: #18267
Start → 5K
26:44 | 8:36/mi
10K· 6.21 mi
53:16
Rank: #18349 (-82)
5K → 10K
26:32 | 8:32/mi
15K· 9.32 mi
1:19:22
Rank: #17942 (+407)
10K → 15K
26:06 | 8:24/mi
20K· 12.43 mi
1:45:37
Rank: #17558 (+384)
15K → 20K
26:15 | 8:27/mi
Half· 13.11 mi
1:51:14
Rank: #17455 (+103)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:11:35
Rank: #17161 (+294)
Half → 25K
20:21 | 8:24/mi
30K· 18.64 mi
2:38:49
Rank: #16893 (+268)
25K → 30K
27:14 | 8:46/mi
20M
2:50:56
Rank: #16814 (+79)
30K → 20M
12:07 | 8:55/mi
21M
3:00:16
Rank: #16713 (+101)
20M → 21M
9:20 | 9:20/mi
35K· 21.75 mi
3:07:51
Rank: #16980 (-267)
21M → 35K
7:35 | 10:08/mi
23M
3:19:18
Rank: #16964 (+16)
35K → 23M
11:27 | 9:09/mi
24M
3:28:32
Rank: #17032 (-68)
23M → 24M
9:14 | 9:14/mi
40K· 24.85 mi
3:36:29
Rank: #17057 (-25)
24M → 40K
7:57 | 9:18/mi
25.2M
3:39:58
Rank: #17078 (-21)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:48:56
Rank: #17092 (-14)
25.2M → Finish
8:58 | 8:48/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
Time1:51:14
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:57:42
Pace8:59 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4526:448:3626:44
8:36
-
10K
6.21 mi11:47:1753:168:3426:32
8:32
-0:04
15K
9.32 mi12:13:231:19:228:3126:06
8:24
-0:08
20K
12.43 mi12:39:381:45:378:3026:15
8:27
+0:03
Half
13.11 mi12:45:151:51:148:295:37
8:14
-0:13
25K
15.53 mi13:05:362:11:358:2820:21
8:24
+0:10
30K
18.64 mi13:32:502:38:498:3127:14
8:46
+0:22
20M
20.00 mi13:44:572:50:568:3312:07
8:55
+0:09
21M
21.00 mi13:54:173:00:168:359:20
9:20
+0:25
35K
21.75 mi14:01:523:07:518:387:35
10:08
+0:48
23M
23.00 mi14:13:193:19:188:4011:27
9:09
-0:59
24M
24.00 mi14:22:333:28:328:419:14
9:14
+0:05
40K
24.85 mi14:30:303:36:298:437:57
9:18
+0:04
25.2M
25.20 mi14:33:593:39:588:443:29
10:06
+0:48
Finish
26.22 mi14:42:573:48:568:448:58
8:48
-1:18

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

8:14 /mi

Average Pace

8:44 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:19

34% of race

Time at Steady Pace

1:41:35

44% of race

Time at Slower Pace

49:02

21% of race

Average Pace: 8:44 /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 mi11:20:4526:448:3626:44
8:36
#18267
10K
6.21 mi11:47:1753:168:3426:32
8:32
#18349
15K
9.32 mi12:13:231:19:228:3126:06
8:24
#17942
20K
12.43 mi12:39:381:45:378:3026:15
8:27
#17558
Half
13.11 mi12:45:151:51:148:295:37
8:14
#17455
25K
15.53 mi13:05:362:11:358:2820:21
8:24
#17161
30K
18.64 mi13:32:502:38:498:3127:14
8:46
#16893
20M
20.00 mi13:44:572:50:568:3312:07
8:55
#16814
21M
21.00 mi13:54:173:00:168:359:20
9:20
#16713
35K
21.75 mi14:01:523:07:518:387:35
10:08
#16980
23M
23.00 mi14:13:193:19:188:4011:27
9:09
#16964
24M
24.00 mi14:22:333:28:328:419:14
9:14
#17032
40K
24.85 mi14:30:303:36:298:437:57
9:18
#17057
25.2M
25.20 mi14:33:593:39:588:443:29
10:06
#17078
Finish
26.22 mi14:42:573:48:568:448:58
8:48
#17092
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi182676718671817161(Top 64%)6024(Top 53%)6024(Top 321%)
10K6.21 mi3.10 mi18349-826726-86726-818494(Top 69%)6760(Top 59%)6760(Top 360%)
15K9.32 mi3.11 mi17942+4076488+2386488+23817161(Top 64%)6024(Top 53%)6024(Top 321%)
20K12.43 mi3.11 mi17558+3846253+2356253+23516550(Top 62%)5678(Top 50%)5678(Top 302%)
Half13.11 mi0.68 mi17455+1036193+606193+6016107(Top 61%)5375(Top 47%)5375(Top 286%)
25K15.53 mi2.42 mi17161+2946040+1536040+15315565(Top 58%)5184(Top 45%)5184(Top 276%)
30K18.64 mi3.11 mi16893+2685892+1485892+14815869(Top 60%)5430(Top 48%)5430(Top 289%)
20M20.00 mi1.36 mi16814+795871+215871+2116121(Top 61%)5644(Top 49%)5644(Top 301%)
21M21.00 mi1.00 mi16713+1015824+475824+4715213(Top 57%)5185(Top 45%)5185(Top 276%)
35K21.75 mi0.75 mi16980-2675980-1565980-15621638(Top 81%)8844(Top 77%)8844(Top 471%)
23M23.00 mi1.25 mi16964+166002-226002-2216789(Top 63%)6181(Top 54%)6181(Top 329%)
24M24.00 mi1.00 mi17032-686064-626064-6218194(Top 68%)7001(Top 61%)7001(Top 373%)
40K24.85 mi0.85 mi17057-256091-276091-2717532(Top 66%)6697(Top 59%)6697(Top 357%)
25.2M25.20 mi0.35 mi17078-216108-176108-1717800(Top 67%)6850(Top 60%)6850(Top 365%)
Finish26.22 mi1.02 mi17092-146126-186126-1817055(Top 64%)6407(Top 56%)6407(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17161

Females

6024

F40-44

6024

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18494

Females

6760

F40-44

6760

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17161

Females

6024

F40-44

6024

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

16550

Females

5678

F40-44

5678

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16107

Females

5375

F40-44

5375

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15565

Females

5184

F40-44

5184

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15869

Females

5430

F40-44

5430

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16121

Females

5644

F40-44

5644

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15213

Females

5185

F40-44

5185

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

21638

Females

8844

F40-44

8844

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16789

Females

6181

F40-44

6181

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18194

Females

7001

F40-44

7001

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17532

Females

6697

F40-44

6697

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17800

Females

6850

F40-44

6850

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17055

Females

6407

F40-44

6407

Passing Analysis

Category:
Athletes Passed
2397
Passed By
1222
Net Change
+1175
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18267
5K → 10K267349-82#18267#18349
10K → 15K45952+407#18349#17942
15K → 20K41834+384#17942#17558
20K → Half1107+103#17558#17455
Half → 25K31117+294#17455#17161
25K → 30K31143+268#17161#16893
30K → 20M11940+79#16893#16814
20M → 21M13029+101#16814#16713
21M → 35K11278-267#16713#16980
35K → 23M9175+16#16980#16964
23M → 24M41109-68#16964#17032
24M → 40K4772-25#17032#17057
40K → 25.2M1738-21#17057#17078
25.2M → Finish6579-14#17078#17092
TOTALS23971222+1175
📊

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