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BOSTON MARATHON 2023

Rebecca Terzian

CA

Bib: 21984 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:40/mi
26:55
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:32/mi
53:26
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:47/mi
1:20:43
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:17/mi
1:49:35
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:01/mi
1:55:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:33/mi
2:18:54
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:20/mi
2:51:00
↑ 181↓ 1480.2%
138 ft elev
20M
12:11/mi
3:07:34
↑ 64↓ 500.2%
148 ft elev
21M
12:14/mi
3:19:48
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:40/mi
3:27:47
↑ 17↓ 861.7%
156 ft elev
23M
11:45/mi
3:42:30
↑ 23↓ 630.6%
116 ft elev
24M
11:30/mi
3:54:00
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:35/mi
4:03:54
↓ 200.3%
20 ft elev
25.2M
14:04/mi
4:08:45
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:53/mi
4:21:53
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:44
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:26:09
Pace11:09 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1726:558:4026:55
8:40
-
10K
6.21 mi11:46:4853:268:3626:31
8:32
-0:08
15K
9.32 mi12:14:051:20:438:4027:17
8:47
+0:15
20K
12.43 mi12:42:571:49:358:4928:52
9:17
+0:30
Half
13.11 mi12:49:061:55:448:506:09
9:01
-0:16
25K
15.53 mi13:12:162:18:548:5623:10
9:33
+0:32
30K
18.64 mi13:44:222:51:009:1032:06
10:20
+0:47
20M
20.00 mi14:00:563:07:349:2316:34
12:11
+1:51
21M
21.00 mi14:13:103:19:489:3112:14
12:14
+0:03
35K
21.75 mi14:21:093:27:479:337:59
10:40
-1:34
23M
23.00 mi14:35:523:42:309:4014:43
11:45
+1:05
24M
24.00 mi14:47:223:54:009:4511:30
11:30
-0:15
40K
24.85 mi14:57:164:03:549:499:54
11:35
+0:05
25.2M
25.20 mi15:02:074:08:459:524:51
14:04
+2:29
Finish
26.22 mi15:15:154:21:5310:0013:08
12:53
-1:11

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

8:32 /mi

Average Pace

10:00 /mi

Slowest Pace

14:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:54

53% of race

Time at Steady Pace

51:35

20% of race

Time at Slower Pace

1:11:24

27% of race

Average Pace: 9:59 /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 mi11:20:1726:558:4026:55
8:40
#18669
10K
6.21 mi11:46:4853:268:3626:31
8:32
#18528
15K
9.32 mi12:14:051:20:438:4027:17
8:47
#18812
20K
12.43 mi12:42:571:49:358:4928:52
9:17
#19414
Half
13.11 mi12:49:061:55:448:506:09
9:01
#19484
25K
15.53 mi13:12:162:18:548:5623:10
9:33
#19849
30K
18.64 mi13:44:222:51:009:1032:06
10:20
#20355
20M
20.00 mi14:00:563:07:349:2316:34
12:11
#20885
21M
21.00 mi14:13:103:19:489:3112:14
12:14
#21073
35K
21.75 mi14:21:093:27:479:337:59
10:40
#21149
23M
23.00 mi14:35:523:42:309:4014:43
11:45
#21365
24M
24.00 mi14:47:223:54:009:4511:30
11:30
#21536
40K
24.85 mi14:57:164:03:549:499:54
11:35
#21654
25.2M
25.20 mi15:02:074:08:459:524:51
14:04
#21725
Finish
26.22 mi15:15:154:21:5310:0013:08
12:53
#22003
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi186696981698119424(Top 73%)7349(Top 64%)7349(Top 404%)
10K6.21 mi3.10 mi18528+1416846+1356846+13518477(Top 69%)6757(Top 59%)6757(Top 372%)
15K9.32 mi3.11 mi18812-2847015-1697015-16919424(Top 73%)7349(Top 64%)7349(Top 404%)
20K12.43 mi3.11 mi19414-6027380-3657380-36520939(Top 79%)8201(Top 72%)8201(Top 451%)
Half13.11 mi0.68 mi19484-707424-447424-4420546(Top 77%)8001(Top 70%)8001(Top 440%)
25K15.53 mi2.42 mi19849-3657634-2107634-21021027(Top 79%)8282(Top 73%)8282(Top 456%)
30K18.64 mi3.11 mi20355-5067929-2957929-29521851(Top 82%)8817(Top 77%)8817(Top 485%)
20M20.00 mi1.36 mi20885-5308227-2988227-29824424(Top 92%)10298(Top 90%)10298(Top 567%)
21M21.00 mi1.00 mi21073-1888363-1368363-13623100(Top 87%)9595(Top 84%)9595(Top 528%)
35K21.75 mi0.75 mi21149-768405-428405-4222707(Top 85%)9425(Top 83%)9425(Top 519%)
23M23.00 mi1.25 mi21365-2168529-1248529-12423658(Top 89%)9931(Top 87%)9931(Top 547%)
24M24.00 mi1.00 mi21536-1718633-1048633-10423867(Top 90%)10087(Top 88%)10087(Top 555%)
40K24.85 mi0.85 mi21654-1188710-778710-7723333(Top 88%)9841(Top 86%)9841(Top 542%)
25.2M25.20 mi0.35 mi21725-718755-458755-4525054(Top 94%)10722(Top 94%)10722(Top 590%)
Finish26.22 mi1.02 mi22003-2788905-1508905-15025917(Top 97%)11127(Top 97%)11127(Top 612%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19424

Females

7349

F45-49

7349

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18477

Females

6757

F45-49

6757

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19424

Females

7349

F45-49

7349

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20939

Females

8201

F45-49

8201

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20546

Females

8001

F45-49

8001

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21027

Females

8282

F45-49

8282

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21851

Females

8817

F45-49

8817

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24424

Females

10298

F45-49

10298

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23100

Females

9595

F45-49

9595

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22707

Females

9425

F45-49

9425

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23658

Females

9931

F45-49

9931

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23867

Females

10087

F45-49

10087

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23333

Females

9841

F45-49

9841

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

25054

Females

10722

F45-49

10722

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25917

Females

11127

F45-49

11127

Passing Analysis

Category:
Athletes Passed
757
Passed By
4091
Net Change
-3334
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18669
5K → 10K422281+141#18669#18528
10K → 15K92376-284#18528#18812
15K → 20K45647-602#18812#19414
20K → Half1080-70#19414#19484
Half → 25K37402-365#19484#19849
25K → 30K47553-506#19849#20355
30K → 20M11541-530#20355#20885
20M → 21M17205-188#20885#21073
21M → 35K2096-76#21073#21149
35K → 23M24240-216#21149#21365
23M → 24M9180-171#21365#21536
24M → 40K15133-118#21536#21654
40K → 25.2M778-71#21654#21725
25.2M → Finish1279-278#21725#22003
TOTALS7574091-3334
📊

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