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BOSTON MARATHON 2023

Jillian Norman

Bib: 10212•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Masters (Masters Women)
#0 / 6539
Top 12%
Division (F45-49)
#0 / 1817
Top 13%
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
7:22/mi
22:52
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:07:53
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:30:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:35:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
1:55:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:21:18
↑ 181↓ 1480.2%
20M
8:12/mi
2:32:26
↑ 64↓ 500.2%
21M
9:48/mi
2:42:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
2:48:28
↑ 17↓ 861.7%
23M
9:09/mi
2:59:56
↑ 23↓ 630.6%
24M
9:37/mi
3:09:33
↓ 821.3%
40K· 24.85 mi
7:56/mi
3:16:20
↓ 200.3%
25.2M
9:17/mi
3:19:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:27:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:55
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:51:36
Pace8:31 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1622:527:2222:52
7:22
-
10K
6.21 mi11:11:4345:197:1822:27
7:14
-0:08
15K
9.32 mi11:34:171:07:537:1722:34
7:16
+0:02
20K
12.43 mi11:57:191:30:557:1923:02
7:25
+0:09
Half
13.11 mi12:02:191:35:557:195:00
7:20
-0:05
25K
15.53 mi12:22:111:55:477:2719:52
8:12
+0:52
30K
18.64 mi12:47:422:21:187:3525:31
8:13
+0:01
20M
20.00 mi12:58:502:32:267:3711:08
8:12
-0:01
21M
21.00 mi13:08:382:42:147:449:48
9:48
+1:36
35K
21.75 mi13:14:522:48:287:456:14
8:20
-1:28
23M
23.00 mi13:26:202:59:567:4911:28
9:09
+0:49
24M
24.00 mi13:35:573:09:337:549:37
9:37
+0:28
40K
24.85 mi13:42:443:16:207:546:47
7:56
-1:41
25.2M
25.20 mi13:45:563:19:327:553:12
9:17
+1:21
Finish
26.22 mi13:53:553:27:317:557:59
7:50
-1:27

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

7:14 /mi

Average Pace

7:55 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:55

46% of race

Time at Steady Pace

1:17:31

37% of race

Time at Slower Pace

34:05

16% of race

Average Pace: 7:55 /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 mi10:49:1622:527:2222:52
7:22
#8528
10K
6.21 mi11:11:4345:197:1822:27
7:14
#8409
15K
9.32 mi11:34:171:07:537:1722:34
7:16
#8333
20K
12.43 mi11:57:191:30:557:1923:02
7:25
#8364
Half
13.11 mi12:02:191:35:557:195:00
7:20
#8385
25K
15.53 mi12:22:111:55:477:2719:52
8:12
#9264
30K
18.64 mi12:47:422:21:187:3525:31
8:13
#9825
20M
20.00 mi12:58:502:32:267:3711:08
8:12
#9916
21M
21.00 mi13:08:382:42:147:449:48
9:48
#10435
35K
21.75 mi13:14:522:48:287:456:14
8:20
#10543
23M
23.00 mi13:26:202:59:567:4911:28
9:09
#10976
24M
24.00 mi13:35:573:09:337:549:37
9:37
#11570
40K
24.85 mi13:42:443:16:207:546:47
7:56
#11479
25.2M
25.20 mi13:45:563:19:327:553:12
9:17
#11515
Finish
26.22 mi13:53:553:27:317:557:59
7:50
#11458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi8528120412048281(Top 31%)1176(Top 10%)1176(Top 65%)
10K6.21 mi3.10 mi8409+1191185+191185+198318(Top 31%)1156(Top 10%)1156(Top 64%)
15K9.32 mi3.11 mi8333+761157+281157+288281(Top 31%)1176(Top 10%)1176(Top 65%)
20K12.43 mi3.11 mi8364-311180-231180-238639(Top 32%)1353(Top 12%)1353(Top 74%)
Half13.11 mi0.68 mi8385-211196-161196-168916(Top 33%)1466(Top 13%)1466(Top 81%)
25K15.53 mi2.42 mi9264-8791551-3551551-35514183(Top 53%)4323(Top 38%)4323(Top 238%)
30K18.64 mi3.11 mi9825-5611812-2611812-26112429(Top 47%)3424(Top 30%)3424(Top 188%)
20M20.00 mi1.36 mi9916-911882-701882-7011660(Top 44%)3090(Top 27%)3090(Top 170%)
21M21.00 mi1.00 mi10435-5192169-2872169-28717257(Top 65%)6334(Top 55%)6334(Top 349%)
35K21.75 mi0.75 mi10543-1082242-732242-7314287(Top 54%)4704(Top 41%)4704(Top 259%)
23M23.00 mi1.25 mi10976-4332484-2422484-24216854(Top 63%)6204(Top 54%)6204(Top 341%)
24M24.00 mi1.00 mi11570-5942827-3432827-34319635(Top 74%)7770(Top 68%)7770(Top 428%)
40K24.85 mi0.85 mi11479+912803+242803+249629(Top 36%)2474(Top 22%)2474(Top 136%)
25.2M25.20 mi0.35 mi11515-362829-262829-2614096(Top 53%)4780(Top 42%)4780(Top 263%)
Finish26.22 mi1.02 mi11458+572830-12830-110958(Top 41%)3166(Top 28%)3166(Top 174%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8281

Females

1176

F45-49

1176

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8318

Females

1156

F45-49

1156

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8281

Females

1176

F45-49

1176

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8639

Females

1353

F45-49

1353

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8916

Females

1466

F45-49

1466

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14183

Females

4323

F45-49

4323

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12429

Females

3424

F45-49

3424

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11660

Females

3090

F45-49

3090

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17257

Females

6334

F45-49

6334

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14287

Females

4704

F45-49

4704

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16854

Females

6204

F45-49

6204

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19635

Females

7770

F45-49

7770

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9629

Females

2474

F45-49

2474

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14096

Females

4780

F45-49

4780

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10958

Females

3166

F45-49

3166

Passing Analysis

Category:
Athletes Passed
1021
Passed By
3949
Net Change
-2930
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8528
5K → 10K294175+119#8528#8409
10K → 15K180104+76#8409#8333
15K → 20K117148-31#8333#8364
20K → Half1435-21#8364#8385
Half → 25K8887-879#8385#9264
25K → 30K45606-561#9264#9825
30K → 20M66157-91#9825#9916
20M → 21M12529-519#9916#10435
21M → 35K23131-108#10435#10543
35K → 23M18451-433#10543#10976
23M → 24M7601-594#10976#11570
24M → 40K11625+91#11570#11479
40K → 25.2M1955-36#11479#11515
25.2M → Finish10245+57#11515#11458
TOTALS10213949-2930
📊

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