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BOSTON MARATHON 2023

Eva Prezenkowski

Bib: 17503•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 28%
Division (F45-49)
#0 / 1817
Top 32%
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
8:09/mi
25:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
50:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:15:29
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:46:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:06:24
↑ 66↓ 880.2%
30K· 18.64 mi
9:18/mi
2:35:19
↑ 181↓ 1480.2%
20M
8:33/mi
2:46:56
↑ 64↓ 500.2%
21M
8:48/mi
2:55:44
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:01:56
↑ 17↓ 861.7%
23M
8:28/mi
3:12:32
↑ 23↓ 630.6%
24M
8:14/mi
3:20:46
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:27:54
↓ 200.3%
25.2M
8:51/mi
3:30:57
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
3:38:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:32
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:52:15
Pace8:34 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5425:198:0925:19
8:09
-
10K
6.21 mi11:41:0050:258:0725:06
8:05
-0:04
15K
9.32 mi12:06:041:15:298:0625:04
8:04
-0:01
20K
12.43 mi12:31:281:40:538:0725:24
8:11
+0:07
Half
13.11 mi12:37:071:46:328:085:39
8:17
+0:06
25K
15.53 mi12:56:592:06:248:0819:52
8:12
-0:05
30K
18.64 mi13:25:542:35:198:2028:55
9:18
+1:06
20M
20.00 mi13:37:312:46:568:2111:37
8:33
-0:45
21M
21.00 mi13:46:192:55:448:228:48
8:48
+0:15
35K
21.75 mi13:52:313:01:568:226:12
8:17
-0:31
23M
23.00 mi14:03:073:12:328:2210:36
8:28
+0:11
24M
24.00 mi14:11:213:20:468:228:14
8:14
-0:14
40K
24.85 mi14:18:293:27:548:227:08
8:21
+0:07
25.2M
25.20 mi14:21:323:30:578:223:03
8:51
+0:30
Finish
26.22 mi14:29:223:38:478:217:50
7:41
-1:10

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

7:41 /mi

Average Pace

8:21 /mi

Slowest Pace

9:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:00

27% of race

Time at Steady Pace

1:48:24

50% of race

Time at Slower Pace

52:23

24% of race

Average Pace: 8:21 /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 mi11:15:5425:198:0925:19
8:09
#15078
10K
6.21 mi11:41:0050:258:0725:06
8:05
#15217
15K
9.32 mi12:06:041:15:298:0625:04
8:04
#15118
20K
12.43 mi12:31:281:40:538:0725:24
8:11
#15011
Half
13.11 mi12:37:071:46:328:085:39
8:17
#15068
25K
15.53 mi12:56:592:06:248:0819:52
8:12
#14899
30K
18.64 mi13:25:542:35:198:2028:55
9:18
#15694
20M
20.00 mi13:37:312:46:568:2111:37
8:33
#15536
21M
21.00 mi13:46:192:55:448:228:48
8:48
#15319
35K
21.75 mi13:52:313:01:568:226:12
8:17
#15248
23M
23.00 mi14:03:073:12:328:2210:36
8:28
#15098
24M
24.00 mi14:11:213:20:468:228:14
8:14
#14998
40K
24.85 mi14:18:293:27:548:227:08
8:21
#14882
25.2M
25.20 mi14:21:323:30:578:223:03
8:51
#14810
Finish
26.22 mi14:29:223:38:478:217:50
7:41
#14631
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi150784697469714955(Top 56%)4651(Top 41%)4651(Top 256%)
10K6.21 mi3.10 mi15217-1394780-834780-8315373(Top 58%)4894(Top 43%)4894(Top 269%)
15K9.32 mi3.11 mi15118+994736+444736+4414955(Top 56%)4651(Top 41%)4651(Top 256%)
20K12.43 mi3.11 mi15011+1074692+444692+4414802(Top 56%)4589(Top 40%)4589(Top 253%)
Half13.11 mi0.68 mi15068-574728-364728-3616369(Top 61%)5501(Top 48%)5501(Top 303%)
25K15.53 mi2.42 mi14899+1694648+804648+8014201(Top 53%)4341(Top 38%)4341(Top 239%)
30K18.64 mi3.11 mi15694-7955185-5375185-53718662(Top 70%)7008(Top 61%)7008(Top 386%)
20M20.00 mi1.36 mi15536+1585111+745111+7413946(Top 52%)4380(Top 38%)4380(Top 241%)
21M21.00 mi1.00 mi15319+2175008+1035008+10312298(Top 46%)3575(Top 31%)3575(Top 197%)
35K21.75 mi0.75 mi15248+714977+314977+3114055(Top 53%)4591(Top 40%)4591(Top 253%)
23M23.00 mi1.25 mi15098+1504902+754902+7513029(Top 49%)4092(Top 36%)4092(Top 225%)
24M24.00 mi1.00 mi14998+1004854+484854+4812870(Top 48%)4069(Top 36%)4069(Top 224%)
40K24.85 mi0.85 mi14882+1164809+454809+4512380(Top 47%)3880(Top 34%)3880(Top 214%)
25.2M25.20 mi0.35 mi14810+724780+294780+2911705(Top 44%)3601(Top 32%)3601(Top 198%)
Finish26.22 mi1.02 mi14631+1794683+974683+979938(Top 37%)2685(Top 24%)2685(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14955

Females

4651

F45-49

4651

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15373

Females

4894

F45-49

4894

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14955

Females

4651

F45-49

4651

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14802

Females

4589

F45-49

4589

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16369

Females

5501

F45-49

5501

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14201

Females

4341

F45-49

4341

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18662

Females

7008

F45-49

7008

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13946

Females

4380

F45-49

4380

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12298

Females

3575

F45-49

3575

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14055

Females

4591

F45-49

4591

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13029

Females

4092

F45-49

4092

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12870

Females

4069

F45-49

4069

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12380

Females

3880

F45-49

3880

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11705

Females

3601

F45-49

3601

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9938

Females

2685

F45-49

2685

Passing Analysis

Category:
Athletes Passed
2114
Passed By
1667
Net Change
+447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15078
5K → 10K233372-139#15078#15217
10K → 15K231132+99#15217#15118
15K → 20K239132+107#15118#15011
20K → Half1976-57#15011#15068
Half → 25K21849+169#15068#14899
25K → 30K27822-795#14899#15694
30K → 20M17416+158#15694#15536
20M → 21M22811+217#15536#15319
21M → 35K787+71#15319#15248
35K → 23M16515+150#15248#15098
23M → 24M11919+100#15098#14998
24M → 40K1215+116#14998#14882
40K → 25.2M797+72#14882#14810
25.2M → Finish1834+179#14810#14631
TOTALS21141667+447
📊

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