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BOSTON MARATHON 2023

Regina Kirkham

Bib: 14427•F

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Division (F18-39)
#0 / 4884
Top 25%
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
7:39/mi
23:45
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:56
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:34:20
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:39:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:57:49
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:21:39
↑ 181↓ 1480.2%
20M
7:38/mi
2:32:02
↑ 64↓ 500.2%
21M
7:49/mi
2:39:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:45:24
↑ 17↓ 861.7%
23M
7:45/mi
2:55:06
↑ 23↓ 630.6%
24M
7:23/mi
3:02:29
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:08:54
↓ 200.3%
25.2M
7:47/mi
3:11:35
↑ 13↓ 160.2%
Finish· 26.22 mi
7:06/mi
3:18:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:24
Pace7:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:25
Pace7:35 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5723:457:3923:45
7:39
-
10K
6.21 mi11:16:4047:287:3823:43
7:38
-0:01
15K
9.32 mi11:40:081:10:567:3723:28
7:33
-0:05
20K
12.43 mi12:03:321:34:207:3523:24
7:32
-0:01
Half
13.11 mi12:08:361:39:247:355:04
7:26
-0:06
25K
15.53 mi12:27:011:57:497:3518:25
7:36
+0:10
30K
18.64 mi12:50:512:21:397:3623:50
7:40
+0:04
20M
20.00 mi13:01:142:32:027:3610:23
7:38
-0:02
21M
21.00 mi13:09:032:39:517:377:49
7:49
+0:11
35K
21.75 mi13:14:362:45:247:365:33
7:25
-0:24
23M
23.00 mi13:24:182:55:067:379:42
7:45
+0:20
24M
24.00 mi13:31:413:02:297:367:23
7:23
-0:22
40K
24.85 mi13:38:063:08:547:366:25
7:30
+0:07
25.2M
25.20 mi13:40:473:11:357:362:41
7:47
+0:17
Finish
26.22 mi13:48:013:18:497:357:14
7:06
-0:41

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

7:06 /mi

Average Pace

7:35 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:00

96% of race

Time at Steady Pace

7:49

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:52:5723:457:3923:45
7:39
#10972
10K
6.21 mi11:16:4047:287:3823:43
7:38
#11251
15K
9.32 mi11:40:081:10:567:3723:28
7:33
#11018
20K
12.43 mi12:03:321:34:207:3523:24
7:32
#10624
Half
13.11 mi12:08:361:39:247:355:04
7:26
#10564
25K
15.53 mi12:27:011:57:497:3518:25
7:36
#10343
30K
18.64 mi12:50:512:21:397:3623:50
7:40
#9964
20M
20.00 mi13:01:142:32:027:3610:23
7:38
#9751
21M
21.00 mi13:09:032:39:517:377:49
7:49
#9529
35K
21.75 mi13:14:362:45:247:365:33
7:25
#9455
23M
23.00 mi13:24:182:55:067:379:42
7:45
#9307
24M
24.00 mi13:31:413:02:297:367:23
7:23
#9181
40K
24.85 mi13:38:063:08:547:366:25
7:30
#9071
25.2M
25.20 mi13:40:473:11:357:362:41
7:47
#8996
Finish
26.22 mi13:48:013:18:497:357:14
7:06
#8835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi109722309230910609(Top 40%)2134(Top 19%)2134(Top 44%)
10K6.21 mi3.10 mi11251-2792466-1572466-15711640(Top 44%)2665(Top 23%)2665(Top 55%)
15K9.32 mi3.11 mi11018+2332340+1262340+12610609(Top 40%)2134(Top 19%)2134(Top 44%)
20K12.43 mi3.11 mi10624+3942139+2012139+2019575(Top 36%)1720(Top 15%)1720(Top 35%)
Half13.11 mi0.68 mi10564+602097+422097+429665(Top 36%)1736(Top 15%)1736(Top 36%)
25K15.53 mi2.42 mi10343+2212017+802017+809516(Top 36%)1783(Top 16%)1783(Top 37%)
30K18.64 mi3.11 mi9964+3791877+1401877+1408452(Top 32%)1488(Top 13%)1488(Top 30%)
20M20.00 mi1.36 mi9751+2131809+681809+687784(Top 29%)1320(Top 12%)1320(Top 27%)
21M21.00 mi1.00 mi9529+2221743+661743+666295(Top 24%)887(Top 8%)887(Top 18%)
35K21.75 mi0.75 mi9455+741731+121731+127985(Top 30%)1492(Top 13%)1492(Top 31%)
23M23.00 mi1.25 mi9307+1481699+321699+328069(Top 30%)1613(Top 14%)1613(Top 33%)
24M24.00 mi1.00 mi9181+1261667+321667+326977(Top 26%)1272(Top 11%)1272(Top 26%)
40K24.85 mi0.85 mi9071+1101638+291638+296802(Top 26%)1287(Top 11%)1287(Top 26%)
25.2M25.20 mi0.35 mi8996+751616+221616+225384(Top 20%)876(Top 8%)876(Top 18%)
Finish26.22 mi1.02 mi8835+1611574+421574+425846(Top 22%)1022(Top 9%)1022(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10609

Females

2134

F18-39

2134

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11640

Females

2665

F18-39

2665

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10609

Females

2134

F18-39

2134

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9575

Females

1720

F18-39

1720

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9665

Females

1736

F18-39

1736

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9516

Females

1783

F18-39

1783

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8452

Females

1488

F18-39

1488

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7784

Females

1320

F18-39

1320

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6295

Females

887

F18-39

887

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7985

Females

1492

F18-39

1492

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8069

Females

1613

F18-39

1613

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6977

Females

1272

F18-39

1272

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6802

Females

1287

F18-39

1287

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5384

Females

876

F18-39

876

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5846

Females

1022

F18-39

1022

Passing Analysis

Category:
Athletes Passed
2847*
Passed By
710
Net Change
+2137
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10972
5K → 10K180459-279#10972#11251
10K → 15K32390+233#11251#11018
15K → 20K41925+394#11018#10624
20K → Half7010+60#10624#10564
Half → 25K25635+221#10564#10343
25K → 30K403*24+379#10343#9964
30K → 20M2174+213#9964#9751
20M → 21M2297+222#9751#9529
21M → 35K9117+74#9529#9455
35K → 23M16618+148#9455#9307
23M → 24M1348+126#9307#9181
24M → 40K1166+110#9181#9071
40K → 25.2M750+75#9071#8996
25.2M → Finish1687+161#8996#8835
TOTALS2847*710+2137

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing