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BOSTON MARATHON 2023

Marianne Bialkowski

Bib: 24126•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
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
9:27/mi
29:21
↑ 97↓ 3451.5%
10K· 6.21 mi
9:20/mi
58:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:23/mi
1:27:30
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:57:02
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:03:29
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:27:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:56/mi
2:58:00
↑ 181↓ 1480.2%
20M
9:55/mi
3:11:29
↑ 64↓ 500.2%
21M
10:34/mi
3:22:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:29:14
↑ 17↓ 861.7%
23M
9:52/mi
3:41:35
↑ 23↓ 630.6%
24M
9:43/mi
3:51:18
↓ 821.3%
40K· 24.85 mi
9:55/mi
3:59:47
↓ 200.3%
25.2M
10:44/mi
4:03:29
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
4:13:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:29
Pace9:25 /mi
2nd Half
Distance13.11 mi
Time2:10:00
Pace9:55 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3029:219:2729:21
9:27
-
10K
6.21 mi12:13:3158:229:2429:01
9:20
-0:07
15K
9.32 mi12:42:391:27:309:2329:08
9:23
+0:03
20K
12.43 mi13:12:111:57:029:2529:32
9:30
+0:07
Half
13.11 mi13:18:382:03:299:256:27
9:27
-0:03
25K
15.53 mi13:42:162:27:079:2823:38
9:45
+0:18
30K
18.64 mi14:13:092:58:009:3330:53
9:56
+0:11
20M
20.00 mi14:26:383:11:299:3413:29
9:55
-0:01
21M
21.00 mi14:37:123:22:039:3710:34
10:34
+0:39
35K
21.75 mi14:44:233:29:149:377:11
9:36
-0:58
23M
23.00 mi14:56:443:41:359:3812:21
9:52
+0:16
24M
24.00 mi15:06:273:51:189:389:43
9:43
-0:09
40K
24.85 mi15:14:563:59:479:398:29
9:55
+0:12
25.2M
25.20 mi15:18:384:03:299:403:42
10:44
+0:49
Finish
26.22 mi15:28:384:13:299:4010:00
9:49
-0:55

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

9:20 /mi

Average Pace

9:40 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:59:13

94% of race

Time at Steady Pace

14:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:40 /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 mi11:44:3029:219:2729:21
9:27
#21937
10K
6.21 mi12:13:3158:229:2429:01
9:20
#22027
15K
9.32 mi12:42:391:27:309:2329:08
9:23
#21955
20K
12.43 mi13:12:111:57:029:2529:32
9:30
#21857
Half
13.11 mi13:18:382:03:299:256:27
9:27
#21858
25K
15.53 mi13:42:162:27:079:2823:38
9:45
#21804
30K
18.64 mi14:13:092:58:009:3330:53
9:56
#21617
20M
20.00 mi14:26:383:11:299:3413:29
9:55
#21523
21M
21.00 mi14:37:123:22:039:3710:34
10:34
#21409
35K
21.75 mi14:44:233:29:149:377:11
9:36
#21359
23M
23.00 mi14:56:443:41:359:3812:21
9:52
#21236
24M
24.00 mi15:06:273:51:189:389:43
9:43
#21172
40K
24.85 mi15:14:563:59:479:398:29
9:55
#21109
25.2M
25.20 mi15:18:384:03:299:403:42
10:44
#21084
Finish
26.22 mi15:28:384:13:299:4010:00
9:49
#21092
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi219378852885221896(Top 82%)8731(Top 76%)8731(Top 1657%)
10K6.21 mi3.10 mi22027-908867-158867-1522049(Top 83%)8840(Top 77%)8840(Top 1677%)
15K9.32 mi3.11 mi21955+728813+548813+5421896(Top 82%)8731(Top 76%)8731(Top 1657%)
20K12.43 mi3.11 mi21857+988744+698744+6921580(Top 81%)8565(Top 75%)8565(Top 1625%)
Half13.11 mi0.68 mi21858-18749-58749-521988(Top 83%)8774(Top 77%)8774(Top 1665%)
25K15.53 mi2.42 mi21804+548711+388711+3821607(Top 81%)8619(Top 75%)8619(Top 1635%)
30K18.64 mi3.11 mi21617+1878622+898622+8920860(Top 78%)8264(Top 72%)8264(Top 1568%)
20M20.00 mi1.36 mi21523+948580+428580+4220261(Top 76%)8006(Top 70%)8006(Top 1519%)
21M21.00 mi1.00 mi21409+1148529+518529+5119816(Top 74%)7830(Top 69%)7830(Top 1486%)
35K21.75 mi0.75 mi21359+508510+198510+1920192(Top 76%)8049(Top 70%)8049(Top 1527%)
23M23.00 mi1.25 mi21236+1238467+438467+4319615(Top 74%)7750(Top 68%)7750(Top 1471%)
24M24.00 mi1.00 mi21172+648441+268441+2619969(Top 75%)7959(Top 70%)7959(Top 1510%)
40K24.85 mi0.85 mi21109+638414+278414+2719772(Top 74%)7936(Top 69%)7936(Top 1506%)
25.2M25.20 mi0.35 mi21084+258408+68408+619833(Top 74%)7974(Top 70%)7974(Top 1513%)
Finish26.22 mi1.02 mi21092-88422-148422-1421208(Top 80%)8665(Top 76%)8665(Top 1644%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21896

Females

8731

F60-64

8731

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22049

Females

8840

F60-64

8840

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21896

Females

8731

F60-64

8731

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21580

Females

8565

F60-64

8565

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

21988

Females

8774

F60-64

8774

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21607

Females

8619

F60-64

8619

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20860

Females

8264

F60-64

8264

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20261

Females

8006

F60-64

8006

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19816

Females

7830

F60-64

7830

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20192

Females

8049

F60-64

8049

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19615

Females

7750

F60-64

7750

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19969

Females

7959

F60-64

7959

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19772

Females

7936

F60-64

7936

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19833

Females

7974

F60-64

7974

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21208

Females

8665

F60-64

8665

Passing Analysis

Category:
Athletes Passed
1645
Passed By
800
Net Change
+845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21937
5K → 10K207297-90#21937#22027
10K → 15K212140+72#22027#21955
15K → 20K18688+98#21955#21857
20K → Half2324-1#21857#21858
Half → 25K12470+54#21858#21804
25K → 30K23750+187#21804#21617
30K → 20M1039+94#21617#21523
20M → 21M12713+114#21523#21409
21M → 35K577+50#21409#21359
35K → 23M14017+123#21359#21236
23M → 24M7612+64#21236#21172
24M → 40K7815+63#21172#21109
40K → 25.2M327+25#21109#21084
25.2M → Finish4351-8#21084#21092
TOTALS1645800+845
📊

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