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BOSTON MARATHON 2023

Kristen Gregory

Bib: 10118•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Female)
#0 / 11423
Top 4%
Masters (Masters Women)
#0 / 6539
Top 1%
Division (F40-44)
#0 / 1878
Top 3%
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
6:52/mi
21:21
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
42:53
↑ 79↓ 1380.4%
15K· 9.32 mi
6:58/mi
1:04:33
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:26:45
↑ 106↓ 860.1%
Half· 13.11 mi
6:50/mi
1:31:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:55/mi
1:48:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:04/mi
2:10:08
↑ 181↓ 1480.2%
20M
7:00/mi
2:19:39
↑ 64↓ 500.2%
21M
7:29/mi
2:27:08
↑ 106↓ 241.6%
35K· 21.75 mi
6:41/mi
2:32:08
↑ 17↓ 861.7%
23M
7:10/mi
2:41:06
↑ 23↓ 630.6%
24M
6:59/mi
2:48:05
↓ 821.3%
40K· 24.85 mi
7:13/mi
2:54:15
↓ 200.3%
25.2M
7:47/mi
2:56:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:04/mi
3:04:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:25
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:32:43
Pace7:04 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2021:216:5221:21
6:52
-
10K
6.21 mi11:08:5242:536:5421:32
6:56
+0:04
15K
9.32 mi11:30:321:04:336:5621:40
6:58
+0:02
20K
12.43 mi11:52:441:26:456:5922:12
7:09
+0:11
Half
13.11 mi11:57:241:31:256:584:40
6:50
-0:19
25K
15.53 mi12:14:101:48:116:5816:46
6:55
+0:05
30K
18.64 mi12:36:072:10:086:5921:57
7:04
+0:09
20M
20.00 mi12:45:382:19:396:599:31
7:00
-0:04
21M
21.00 mi12:53:072:27:087:007:29
7:29
+0:29
35K
21.75 mi12:58:072:32:087:005:00
6:41
-0:48
23M
23.00 mi13:07:052:41:067:008:58
7:10
+0:29
24M
24.00 mi13:14:042:48:057:006:59
6:59
-0:11
40K
24.85 mi13:20:142:54:157:016:10
7:13
+0:14
25.2M
25.20 mi13:22:552:56:567:012:41
7:47
+0:34
Finish
26.22 mi13:30:073:04:087:027:12
7:04
-0:43

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

6:41 /mi

Average Pace

7:02 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:58

94% of race

Time at Steady Pace

10:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:01 /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 mi10:47:2021:216:5221:21
6:52
#5345
10K
6.21 mi11:08:5242:536:5421:32
6:56
#5838
15K
9.32 mi11:30:321:04:336:5621:40
6:58
#6041
20K
12.43 mi11:52:441:26:456:5922:12
7:09
#6237
Half
13.11 mi11:57:241:31:256:584:40
6:50
#6201
25K
15.53 mi12:14:101:48:116:5816:46
6:55
#6000
30K
18.64 mi12:36:072:10:086:5921:57
7:04
#5696
20M
20.00 mi12:45:382:19:396:599:31
7:00
#5559
21M
21.00 mi12:53:072:27:087:007:29
7:29
#5459
35K
21.75 mi12:58:072:32:087:005:00
6:41
#5359
23M
23.00 mi13:07:052:41:067:008:58
7:10
#5263
24M
24.00 mi13:14:042:48:057:006:59
6:59
#5169
40K
24.85 mi13:20:142:54:157:016:10
7:13
#5109
25.2M
25.20 mi13:22:552:56:567:012:41
7:47
#5100
Finish
26.22 mi13:30:073:04:087:027:12
7:04
#5073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi53453993996405(Top 24%)617(Top 5%)617(Top 33%)
10K6.21 mi3.10 mi5838-493477-78477-786368(Top 24%)606(Top 5%)606(Top 32%)
15K9.32 mi3.11 mi6041-203521-44521-446405(Top 24%)617(Top 5%)617(Top 33%)
20K12.43 mi3.11 mi6237-196569-48569-486793(Top 26%)726(Top 6%)726(Top 39%)
Half13.11 mi0.68 mi6201+36555+14555+145673(Top 21%)448(Top 4%)448(Top 24%)
25K15.53 mi2.42 mi6000+201513+42513+425072(Top 19%)384(Top 3%)384(Top 20%)
30K18.64 mi3.11 mi5696+304464+49464+494766(Top 18%)368(Top 3%)368(Top 20%)
20M20.00 mi1.36 mi5559+137446+18446+184085(Top 15%)306(Top 3%)306(Top 16%)
21M21.00 mi1.00 mi5459+100438+8438+84522(Top 17%)403(Top 4%)403(Top 21%)
35K21.75 mi0.75 mi5359+100427+11427+113530(Top 13%)262(Top 2%)262(Top 14%)
23M23.00 mi1.25 mi5263+96422+5422+54623(Top 17%)443(Top 4%)443(Top 24%)
24M24.00 mi1.00 mi5169+94417+5417+54627(Top 17%)472(Top 4%)472(Top 25%)
40K24.85 mi0.85 mi5109+60413+4413+44977(Top 19%)635(Top 6%)635(Top 34%)
25.2M25.20 mi0.35 mi5100+9410+3410+35328(Top 20%)820(Top 7%)820(Top 44%)
Finish26.22 mi1.02 mi5073+27413-3413-35635(Top 21%)948(Top 8%)948(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6405

Females

617

F40-44

617

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6368

Females

606

F40-44

606

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6405

Females

617

F40-44

617

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6793

Females

726

F40-44

726

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

5673

Females

448

F40-44

448

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5072

Females

384

F40-44

384

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4766

Females

368

F40-44

368

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4085

Females

306

F40-44

306

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4522

Females

403

F40-44

403

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3530

Females

262

F40-44

262

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4623

Females

443

F40-44

443

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4627

Females

472

F40-44

472

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4977

Females

635

F40-44

635

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5328

Females

820

F40-44

820

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5635

Females

948

F40-44

948

Passing Analysis

Category:
Athletes Passed
1455
Passed By
1183
Net Change
+272
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5345
5K → 10K57550-493#5345#5838
10K → 15K50253-203#5838#6041
15K → 20K44240-196#6041#6237
20K → Half437+36#6237#6201
Half → 25K2087+201#6201#6000
25K → 30K31915+304#6000#5696
30K → 20M1447+137#5696#5559
20M → 21M11212+100#5559#5459
21M → 35K1011+100#5459#5359
35K → 23M11418+96#5359#5263
23M → 24M10713+94#5263#5169
24M → 40K7616+60#5169#5109
40K → 25.2M2415+9#5109#5100
25.2M → Finish5629+27#5100#5073
TOTALS14551183+272
📊

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