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BOSTON MARATHON 2024

Katherine Nierva

Bib: 13711•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 45%
Gender (Female)
#0 / 10924
Top 32%
Masters (Masters Women)
#0 / 6263
Top 20%
Division (F40-44)
#0 / 1613
Top 37%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:06/mi
25:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
50:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:15:35
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:46:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:06:49
↑ 66↓ 880.2%
30K· 18.64 mi
8:36/mi
2:33:32
↑ 181↓ 1480.2%
20M
8:42/mi
2:45:21
↑ 64↓ 500.2%
21M
9:25/mi
2:54:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:01:04
↑ 17↓ 861.7%
23M
8:31/mi
3:11:44
↑ 23↓ 630.6%
24M
8:11/mi
3:19:55
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:27:02
↓ 200.3%
25.2M
9:20/mi
3:30:15
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:38:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:28
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:51:49
Pace8:32 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3725:118:0625:11
8:06
-
10K
6.21 mi11:20:5250:268:0725:15
8:08
+0:02
15K
9.32 mi11:46:011:15:358:0725:09
8:06
-0:02
20K
12.43 mi12:11:251:40:598:0825:24
8:11
+0:05
Half
13.11 mi12:16:541:46:288:075:29
8:02
-0:09
25K
15.53 mi12:37:152:06:498:1020:21
8:24
+0:22
30K
18.64 mi13:03:582:33:328:1426:43
8:36
+0:12
20M
20.00 mi13:15:472:45:218:1611:49
8:42
+0:06
21M
21.00 mi13:25:122:54:468:199:25
9:25
+0:43
35K
21.75 mi13:31:303:01:048:206:18
8:25
-1:00
23M
23.00 mi13:42:103:11:448:2010:40
8:31
+0:06
24M
24.00 mi13:50:213:19:558:208:11
8:11
-0:20
40K
24.85 mi13:57:283:27:028:207:07
8:19
+0:08
25.2M
25.20 mi14:00:413:30:158:213:13
9:20
+1:01
Finish
26.22 mi14:08:433:38:178:208:02
7:53
-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

7:53 /mi

Average Pace

8:20 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:50

89% of race

Time at Steady Pace

11:49

5% of race

Time at Slower Pace

12:38

6% of race

Average Pace: 8:20 /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 mi10:55:3725:118:0625:11
8:06
#15421
10K
6.21 mi11:20:5250:268:0725:15
8:08
#15223
15K
9.32 mi11:46:011:15:358:0725:09
8:06
#14773
20K
12.43 mi12:11:251:40:598:0825:24
8:11
#14225
Half
13.11 mi12:16:541:46:288:075:29
8:02
#14151
25K
15.53 mi12:37:152:06:498:1020:21
8:24
#13814
30K
18.64 mi13:03:582:33:328:1426:43
8:36
#13202
20M
20.00 mi13:15:472:45:218:1611:49
8:42
#12919
21M
21.00 mi13:25:122:54:468:199:25
9:25
#12742
35K
21.75 mi13:31:303:01:048:206:18
8:25
#12612
23M
23.00 mi13:42:103:11:448:2010:40
8:31
#12323
24M
24.00 mi13:50:213:19:558:208:11
8:11
#12073
40K
24.85 mi13:57:283:27:028:207:07
8:19
#11863
25.2M
25.20 mi14:00:413:30:158:213:13
9:20
#11773
Finish
26.22 mi14:08:433:38:178:208:02
7:53
#11561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi154215200520014065(Top 55%)4399(Top 40%)4399(Top 273%)
10K6.21 mi3.10 mi15223+1985068+1325068+13215059(Top 59%)4965(Top 45%)4965(Top 308%)
15K9.32 mi3.11 mi14773+4504798+2704798+27014065(Top 55%)4399(Top 40%)4399(Top 273%)
20K12.43 mi3.11 mi14225+5484492+3064492+30612986(Top 51%)3842(Top 35%)3842(Top 238%)
Half13.11 mi0.68 mi14151+744459+334459+3313033(Top 51%)3901(Top 36%)3901(Top 242%)
25K15.53 mi2.42 mi13814+3374287+1724287+17212480(Top 49%)3764(Top 34%)3764(Top 233%)
30K18.64 mi3.11 mi13202+6124022+2654022+26511166(Top 44%)3269(Top 30%)3269(Top 203%)
20M20.00 mi1.36 mi12919+2833929+933929+9310536(Top 41%)3224(Top 30%)3224(Top 200%)
21M21.00 mi1.00 mi12742+1773881+483881+4810460(Top 41%)3464(Top 32%)3464(Top 215%)
35K21.75 mi0.75 mi12612+1303846+353846+3510308(Top 40%)3392(Top 31%)3392(Top 210%)
23M23.00 mi1.25 mi12323+2893753+933753+938612(Top 34%)2685(Top 25%)2685(Top 166%)
24M24.00 mi1.00 mi12073+2503663+903663+907691(Top 30%)2343(Top 21%)2343(Top 145%)
40K24.85 mi0.85 mi11863+2103591+723591+727507(Top 29%)2386(Top 22%)2386(Top 148%)
25.2M25.20 mi0.35 mi11773+903567+243567+248095(Top 32%)2718(Top 25%)2718(Top 169%)
Finish26.22 mi1.02 mi11561+2123497+703497+707869(Top 31%)2511(Top 23%)2511(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14065

Females

4399

F40-44

4399

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15059

Females

4965

F40-44

4965

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14065

Females

4399

F40-44

4399

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

12986

Females

3842

F40-44

3842

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13033

Females

3901

F40-44

3901

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

12480

Females

3764

F40-44

3764

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11166

Females

3269

F40-44

3269

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10536

Females

3224

F40-44

3224

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10460

Females

3464

F40-44

3464

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10308

Females

3392

F40-44

3392

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

8612

Females

2685

F40-44

2685

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7691

Females

2343

F40-44

2343

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7507

Females

2386

F40-44

2386

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8095

Females

2718

F40-44

2718

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

7869

Females

2511

F40-44

2511

Passing Analysis

Category:
Athletes Passed
4347
Passed By
487
Net Change
+3860
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15421
5K → 10K373175+198#15421#15223
10K → 15K50656+450#15223#14773
15K → 20K58234+548#14773#14225
20K → Half839+74#14225#14151
Half → 25K38649+337#14151#13814
25K → 30K65240+612#13814#13202
30K → 20M30320+283#13202#12919
20M → 21M22144+177#12919#12742
21M → 35K14717+130#12742#12612
35K → 23M2989+289#12612#12323
23M → 24M2544+250#12323#12073
24M → 40K22313+210#12073#11863
40K → 25.2M10111+90#11863#11773
25.2M → Finish2186+212#11773#11561
TOTALS4347487+3860
📊

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