Boston Marathon logo
BOSTON MARATHON 2023

Regina Massingill

Bib: 9227•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:48
Rank: #6355
Start → 5K
21:48 | 7:01/mi
10K· 6.21 mi
43:10
Rank: #6182 (+173)
5K → 10K
21:22 | 6:53/mi
15K· 9.32 mi
1:04:51
Rank: #6249 (-67)
10K → 15K
21:41 | 6:59/mi
20K· 12.43 mi
1:27:03
Rank: #6379 (-130)
15K → 20K
22:12 | 7:09/mi
Half· 13.11 mi
1:31:52
Rank: #6408 (-29)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:49:21
Rank: #6446 (-38)
Half → 25K
17:29 | 7:13/mi
30K· 18.64 mi
2:12:52
Rank: #6558 (-112)
25K → 30K
23:31 | 7:34/mi
20M
2:23:08
Rank: #6555 (+3)
30K → 20M
10:16 | 7:33/mi
21M
2:31:13
Rank: #6595 (-40)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:36:43
Rank: #6589 (+6)
21M → 35K
5:30 | 7:21/mi
23M
2:46:16
Rank: #6577 (+12)
35K → 23M
9:33 | 7:38/mi
24M
2:53:36
Rank: #6538 (+39)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:59:57
Rank: #6480 (+58)
24M → 40K
6:21 | 7:26/mi
25.2M
3:02:38
Rank: #6436 (+44)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:09:48
Rank: #6383 (+53)
25.2M → Finish
7:10 | 7:02/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
Time1:31:52
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:37:56
Pace7:28 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3721:487:0121:48
7:01
-
10K
6.21 mi11:08:5943:106:5721:22
6:53
-0:08
15K
9.32 mi11:30:401:04:516:5721:41
6:59
+0:06
20K
12.43 mi11:52:521:27:037:0022:12
7:09
+0:10
Half
13.11 mi11:57:411:31:527:004:49
7:04
-0:05
25K
15.53 mi12:15:101:49:217:0217:29
7:13
+0:09
30K
18.64 mi12:38:412:12:527:0823:31
7:34
+0:21
20M
20.00 mi12:48:572:23:087:0910:16
7:33
-0:01
21M
21.00 mi12:57:022:31:137:128:05
8:05
+0:32
35K
21.75 mi13:02:322:36:437:125:30
7:21
-0:44
23M
23.00 mi13:12:052:46:167:149:33
7:38
+0:17
24M
24.00 mi13:19:252:53:367:147:20
7:20
-0:18
40K
24.85 mi13:25:462:59:577:146:21
7:26
+0:06
25.2M
25.20 mi13:28:273:02:387:152:41
7:47
+0:21
Finish
26.22 mi13:35:373:09:487:157:10
7:02
-0:45

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

6:53 /mi

Average Pace

7:15 /mi

Slowest Pace

8:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:29

89% of race

Time at Steady Pace

20:19

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:47:3721:487:0121:48
7:01
#6355
10K
6.21 mi11:08:5943:106:5721:22
6:53
#6182
15K
9.32 mi11:30:401:04:516:5721:41
6:59
#6249
20K
12.43 mi11:52:521:27:037:0022:12
7:09
#6379
Half
13.11 mi11:57:411:31:527:004:49
7:04
#6408
25K
15.53 mi12:15:101:49:217:0217:29
7:13
#6446
30K
18.64 mi12:38:412:12:527:0823:31
7:34
#6558
20M
20.00 mi12:48:572:23:087:0910:16
7:33
#6555
21M
21.00 mi12:57:022:31:137:128:05
8:05
#6595
35K
21.75 mi13:02:322:36:437:125:30
7:21
#6589
23M
23.00 mi13:12:052:46:167:149:33
7:38
#6577
24M
24.00 mi13:19:252:53:367:147:20
7:20
#6538
40K
24.85 mi13:25:462:59:577:146:21
7:26
#6480
25.2M
25.20 mi13:28:273:02:387:152:41
7:47
#6436
Finish
26.22 mi13:35:373:09:487:157:10
7:02
#6383
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi63555675676442(Top 24%)625(Top 5%)625(Top 13%)
10K6.21 mi3.10 mi6182+173551+16551+165984(Top 22%)530(Top 5%)530(Top 11%)
15K9.32 mi3.11 mi6249-67568-17568-176442(Top 24%)625(Top 5%)625(Top 13%)
20K12.43 mi3.11 mi6379-130604-36604-366797(Top 26%)730(Top 6%)730(Top 15%)
Half13.11 mi0.68 mi6408-29610-6610-66962(Top 26%)746(Top 7%)746(Top 15%)
25K15.53 mi2.42 mi6446-38628-18628-186746(Top 25%)773(Top 7%)773(Top 16%)
30K18.64 mi3.11 mi6558-112662-34662-347722(Top 29%)1187(Top 10%)1187(Top 24%)
20M20.00 mi1.36 mi6555+3679-17679-177192(Top 27%)1084(Top 9%)1084(Top 22%)
21M21.00 mi1.00 mi6595-40705-26705-267909(Top 30%)1468(Top 13%)1468(Top 30%)
35K21.75 mi0.75 mi6589+6713-8713-87501(Top 28%)1293(Top 11%)1293(Top 26%)
23M23.00 mi1.25 mi6577+12720-7720-77279(Top 27%)1276(Top 11%)1276(Top 26%)
24M24.00 mi1.00 mi6538+39715+5715+56626(Top 25%)1108(Top 10%)1108(Top 23%)
40K24.85 mi0.85 mi6480+58717-2717-26269(Top 24%)1065(Top 9%)1065(Top 22%)
25.2M25.20 mi0.35 mi6436+44711+6711+65345(Top 20%)837(Top 7%)837(Top 17%)
Finish26.22 mi1.02 mi6383+53704+7704+75423(Top 20%)870(Top 8%)870(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6442

Females

625

F18-39

625

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5984

Females

530

F18-39

530

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6442

Females

625

F18-39

625

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6797

Females

730

F18-39

730

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6962

Females

746

F18-39

746

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6746

Females

773

F18-39

773

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7722

Females

1187

F18-39

1187

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7192

Females

1084

F18-39

1084

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7909

Females

1468

F18-39

1468

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7501

Females

1293

F18-39

1293

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7279

Females

1276

F18-39

1276

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6626

Females

1108

F18-39

1108

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6269

Females

1065

F18-39

1065

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5345

Females

837

F18-39

837

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5423

Females

870

F18-39

870

Passing Analysis

Category:
Athletes Passed
1080
Passed By
1108
Net Change
-28
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6355
5K → 10K289116+173#6355#6182
10K → 15K87154-67#6182#6249
15K → 20K63193-130#6249#6379
20K → Half635-29#6379#6408
Half → 25K65103-38#6408#6446
25K → 30K80192-112#6446#6558
30K → 20M6360+3#6558#6555
20M → 21M4383-40#6555#6595
21M → 35K4640+6#6595#6589
35K → 23M6553+12#6589#6577
23M → 24M6930+39#6577#6538
24M → 40K8123+58#6538#6480
40K → 25.2M495+44#6480#6436
25.2M → Finish7421+53#6436#6383
TOTALS10801108-28
📊

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