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BOSTON MARATHON 2023

Kathy Sieger

MA

Bib: 26200 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
9:54/mi
30:46
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:54/mi
1:01:33
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:18/mi
1:33:34
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:53/mi
2:07:24
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
11:00/mi
2:14:54
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
11:22/mi
2:42:27
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
12:20/mi
3:20:46
↑ 181↓ 1480.2%
138 ft elev
20M
12:24/mi
3:37:37
↑ 64↓ 500.2%
148 ft elev
21M
13:06/mi
3:50:43
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:56/mi
3:59:39
↑ 17↓ 861.7%
156 ft elev
23M
12:09/mi
4:14:52
↑ 23↓ 630.6%
116 ft elev
24M
12:29/mi
4:27:21
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:44/mi
4:38:14
↓ 200.3%
20 ft elev
25.2M
12:51/mi
4:42:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
11:05/mi
4:53:58
↑ 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
Time2:14:54
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:39:04
Pace12:08 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:1430:469:5430:46
9:54
-
10K
6.21 mi12:17:011:01:339:5430:47
9:54
0:00
15K
9.32 mi12:49:021:33:3410:0232:01
10:18
+0:24
20K
12.43 mi13:22:522:07:2410:1533:50
10:53
+0:35
Half
13.11 mi13:30:222:14:5410:177:30
11:00
+0:07
25K
15.53 mi13:57:552:42:2710:2727:33
11:22
+0:22
30K
18.64 mi14:36:143:20:4610:4638:19
12:20
+0:58
20M
20.00 mi14:53:053:37:3710:5316:51
12:24
+0:04
21M
21.00 mi15:06:113:50:4310:5913:06
13:06
+0:42
35K
21.75 mi15:15:073:59:3911:018:56
11:56
-1:10
23M
23.00 mi15:30:204:14:5211:0515:13
12:09
+0:13
24M
24.00 mi15:42:494:27:2111:0812:29
12:29
+0:20
40K
24.85 mi15:53:424:38:1411:1210:53
12:44
+0:15
25.2M
25.20 mi15:58:084:42:4011:134:26
12:51
+0:07
Finish
26.22 mi16:09:264:53:5811:1311:18
11:05
-1:46

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

9:54 /mi

Average Pace

11:13 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:45

59% of race

Time at Steady Pace

1:19:19

27% of race

Time at Slower Pace

40:54

14% of race

Average Pace: 11:13 /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 mi11:46:1430:469:5430:46
9:54
#23213
10K
6.21 mi12:17:011:01:339:5430:47
9:54
#23406
15K
9.32 mi12:49:021:33:3410:0232:01
10:18
#23692
20K
12.43 mi13:22:522:07:2410:1533:50
10:53
#23918
Half
13.11 mi13:30:222:14:5410:177:30
11:00
#23983
25K
15.53 mi13:57:552:42:2710:2727:33
11:22
#24093
30K
18.64 mi14:36:143:20:4610:4638:19
12:20
#24289
20M
20.00 mi14:53:053:37:3710:5316:51
12:24
#24344
21M
21.00 mi15:06:113:50:4310:5913:06
13:06
#24331
35K
21.75 mi15:15:073:59:3911:018:56
11:56
#24350
23M
23.00 mi15:30:204:14:5211:0515:13
12:09
#24358
24M
24.00 mi15:42:494:27:2111:0812:29
12:29
#24409
40K
24.85 mi15:53:424:38:1411:1210:53
12:44
#24444
25.2M
25.20 mi15:58:084:42:4011:134:26
12:51
#24438
Finish
26.22 mi16:09:264:53:5811:1311:18
11:05
#24435
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi232139506950624111(Top 91%)9955(Top 87%)9955(Top 825%)
10K6.21 mi3.10 mi23406-1939575-699575-6923514(Top 88%)9634(Top 84%)9634(Top 798%)
15K9.32 mi3.11 mi23692-2869721-1469721-14624111(Top 91%)9955(Top 87%)9955(Top 825%)
20K12.43 mi3.11 mi23918-2269842-1219842-12124470(Top 92%)10188(Top 89%)10188(Top 844%)
Half13.11 mi0.68 mi23983-659884-429884-4224936(Top 94%)10460(Top 92%)10460(Top 867%)
25K15.53 mi2.42 mi24093-1109958-749958-7424498(Top 92%)10228(Top 90%)10228(Top 847%)
30K18.64 mi3.11 mi24289-19610093-13510093-13524846(Top 93%)10482(Top 92%)10482(Top 868%)
20M20.00 mi1.36 mi24344-5510127-3410127-3424634(Top 93%)10412(Top 91%)10412(Top 863%)
21M21.00 mi1.00 mi24331+1310125+210125+224203(Top 91%)10204(Top 89%)10204(Top 845%)
35K21.75 mi0.75 mi24350-1910148-2310148-2324632(Top 93%)10472(Top 92%)10472(Top 868%)
23M23.00 mi1.25 mi24358-810159-1110159-1124194(Top 91%)10232(Top 90%)10232(Top 848%)
24M24.00 mi1.00 mi24409-5110199-4010199-4025046(Top 94%)10708(Top 94%)10708(Top 887%)
40K24.85 mi0.85 mi24444-3510217-1810217-1824704(Top 93%)10525(Top 92%)10525(Top 872%)
25.2M25.20 mi0.35 mi24438+610219-210219-223811(Top 89%)10099(Top 88%)10099(Top 837%)
Finish26.22 mi1.02 mi24435+310224-510224-524134(Top 91%)10226(Top 90%)10226(Top 847%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

24111

Females

9955

F50-54

9955

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23514

Females

9634

F50-54

9634

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

24111

Females

9955

F50-54

9955

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24470

Females

10188

F50-54

10188

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

24936

Females

10460

F50-54

10460

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

24498

Females

10228

F50-54

10228

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24846

Females

10482

F50-54

10482

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24634

Females

10412

F50-54

10412

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24203

Females

10204

F50-54

10204

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24632

Females

10472

F50-54

10472

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24194

Females

10232

F50-54

10232

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

25046

Females

10708

F50-54

10708

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24704

Females

10525

F50-54

10525

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23811

Females

10099

F50-54

10099

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24134

Females

10226

F50-54

10226

Passing Analysis

Category:
Athletes Passed
531
Passed By
1753
Net Change
-1222
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23213
5K → 10K131324-193#23213#23406
10K → 15K33319-286#23406#23692
15K → 20K50276-226#23692#23918
20K → Half1277-65#23918#23983
Half → 25K59169-110#23983#24093
25K → 30K54250-196#24093#24289
30K → 20M2681-55#24289#24344
20M → 21M4835+13#24344#24331
21M → 35K2241-19#24331#24350
35K → 23M3240-8#24350#24358
23M → 24M1263-51#24358#24409
24M → 40K1651-35#24409#24444
40K → 25.2M126+6#24444#24438
25.2M → Finish2421+3#24438#24435
TOTALS5311753-1222
📊

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