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BOSTON MARATHON 2023

Carrie Fredin

Bib: 18001•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
8:58/mi
27:50
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
55:51
↑ 79↓ 1380.4%
15K· 9.32 mi
9:10/mi
1:24:21
↑ 67↓ 78
20K· 12.43 mi
9:27/mi
1:53:43
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:00:05
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:23:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:22/mi
2:55:57
↑ 181↓ 1480.2%
20M
10:34/mi
3:10:18
↑ 64↓ 500.2%
21M
11:02/mi
3:21:20
↑ 106↓ 241.6%
35K· 21.75 mi
10:01/mi
3:28:50
↑ 17↓ 861.7%
23M
10:30/mi
3:41:59
↑ 23↓ 630.6%
24M
10:01/mi
3:52:00
↓ 821.3%
40K· 24.85 mi
10:01/mi
4:00:34
↓ 200.3%
25.2M
10:35/mi
4:04:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:41/mi
4:14:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:05
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:14:00
Pace10:13 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1027:508:5827:50
8:58
-
10K
6.21 mi11:53:1155:518:5928:01
9:01
+0:03
15K
9.32 mi12:21:411:24:219:0328:30
9:10
+0:09
20K
12.43 mi12:51:031:53:439:0929:22
9:27
+0:17
Half
13.11 mi12:57:252:00:059:106:22
9:20
-0:07
25K
15.53 mi13:21:042:23:449:1523:39
9:45
+0:25
30K
18.64 mi13:53:172:55:579:2632:13
10:22
+0:37
20M
20.00 mi14:07:383:10:189:3114:21
10:34
+0:12
21M
21.00 mi14:18:403:21:209:3511:02
11:02
+0:28
35K
21.75 mi14:26:103:28:509:367:30
10:01
-1:01
23M
23.00 mi14:39:193:41:599:3913:09
10:30
+0:29
24M
24.00 mi14:49:203:52:009:4010:01
10:01
-0:29
40K
24.85 mi14:57:544:00:349:418:34
10:01
0:00
25.2M
25.20 mi15:01:334:04:139:413:39
10:35
+0:34
Finish
26.22 mi15:11:254:14:059:429:52
9:41
-0:54

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

8:58 /mi

Average Pace

9:42 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:57

51% of race

Time at Steady Pace

49:44

20% of race

Time at Slower Pace

1:14:24

29% of race

Average Pace: 9:41 /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 mi11:25:1027:508:5827:50
8:58
#20266
10K
6.21 mi11:53:1155:518:5928:01
9:01
#20604
15K
9.32 mi12:21:411:24:219:0328:30
9:10
#20796
20K
12.43 mi12:51:031:53:439:0929:22
9:27
#20998
Half
13.11 mi12:57:252:00:059:106:22
9:20
#21036
25K
15.53 mi13:21:042:23:449:1523:39
9:45
#21134
30K
18.64 mi13:53:172:55:579:2632:13
10:22
#21290
20M
20.00 mi14:07:383:10:189:3114:21
10:34
#21332
21M
21.00 mi14:18:403:21:209:3511:02
11:02
#21305
35K
21.75 mi14:26:103:28:509:367:30
10:01
#21303
23M
23.00 mi14:39:193:41:599:3913:09
10:30
#21298
24M
24.00 mi14:49:203:52:009:4010:01
10:01
#21269
40K
24.85 mi14:57:544:00:349:418:34
10:01
#21210
25.2M
25.20 mi15:01:334:04:139:413:39
10:35
#21180
Finish
26.22 mi15:11:254:14:059:429:52
9:41
#21168
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi202667982798221219(Top 80%)8352(Top 73%)8352(Top 445%)
10K6.21 mi3.10 mi20604-3388090-1088090-10820959(Top 79%)8239(Top 72%)8239(Top 439%)
15K9.32 mi3.11 mi20796-1928175-858175-8521219(Top 80%)8352(Top 73%)8352(Top 445%)
20K12.43 mi3.11 mi20998-2028274-998274-9921404(Top 80%)8470(Top 74%)8470(Top 451%)
Half13.11 mi0.68 mi21036-388289-158289-1521641(Top 81%)8593(Top 75%)8593(Top 458%)
25K15.53 mi2.42 mi21134-988350-618350-6121620(Top 81%)8626(Top 76%)8626(Top 459%)
30K18.64 mi3.11 mi21290-1568443-938443-9321930(Top 82%)8867(Top 78%)8867(Top 472%)
20M20.00 mi1.36 mi21332-428484-418484-4121874(Top 82%)8907(Top 78%)8907(Top 474%)
21M21.00 mi1.00 mi21305+278480+48480+420904(Top 79%)8403(Top 74%)8403(Top 447%)
35K21.75 mi0.75 mi21303+28483-38483-321346(Top 80%)8676(Top 76%)8676(Top 462%)
23M23.00 mi1.25 mi21298+58498-158498-1521329(Top 80%)8699(Top 76%)8699(Top 463%)
24M24.00 mi1.00 mi21269+298491+78491+720846(Top 78%)8462(Top 74%)8462(Top 451%)
40K24.85 mi0.85 mi21210+598468+238468+2320037(Top 75%)8079(Top 71%)8079(Top 430%)
25.2M25.20 mi0.35 mi21180+308454+148454+1419412(Top 73%)7746(Top 68%)7746(Top 412%)
Finish26.22 mi1.02 mi21168+128463-98463-920752(Top 78%)8437(Top 74%)8437(Top 449%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21219

Females

8352

F40-44

8352

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20959

Females

8239

F40-44

8239

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21219

Females

8352

F40-44

8352

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21404

Females

8470

F40-44

8470

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21641

Females

8593

F40-44

8593

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21620

Females

8626

F40-44

8626

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21930

Females

8867

F40-44

8867

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21874

Females

8907

F40-44

8907

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20904

Females

8403

F40-44

8403

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21346

Females

8676

F40-44

8676

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21329

Females

8699

F40-44

8699

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20846

Females

8462

F40-44

8462

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20037

Females

8079

F40-44

8079

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19412

Females

7746

F40-44

7746

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20752

Females

8437

F40-44

8437

Passing Analysis

Category:
Athletes Passed
968
Passed By
1870
Net Change
-902
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20266
5K → 10K154492-338#20266#20604
10K → 15K101293-192#20604#20796
15K → 20K98300-202#20796#20998
20K → Half1553-38#20998#21036
Half → 25K68166-98#21036#21134
25K → 30K78234-156#21134#21290
30K → 20M61103-42#21290#21332
20M → 21M7750+27#21332#21305
21M → 35K3230+2#21305#21303
35K → 23M6863+5#21303#21298
23M → 24M5728+29#21298#21269
24M → 40K8021+59#21269#21210
40K → 25.2M366+30#21210#21180
25.2M → Finish4331+12#21180#21168
TOTALS9681870-902
📊

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