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BOSTON MARATHON 2024

Natalie Rentz

Bib: 20399•F

SD

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:55
Rank: #16902
Start → 5K
25:55 | 8:21/mi
10K· 6.21 mi
52:56
Rank: #17616 (-714)
5K → 10K
27:01 | 8:42/mi
15K· 9.32 mi
1:21:46
Rank: #18578 (-962)
10K → 15K
28:50 | 9:17/mi
20K· 12.43 mi
1:50:12
Rank: #18337 (+241)
15K → 20K
28:26 | 9:09/mi
Half· 13.11 mi
1:56:20
Rank: #18327 (+10)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:20:11
Rank: #18416 (-89)
Half → 25K
23:51 | 9:50/mi
30K· 18.64 mi
2:53:14
Rank: #18620 (-204)
25K → 30K
33:03 | 10:38/mi
20M
3:06:45
Rank: #18442 (+178)
30K → 20M
13:31 | 9:57/mi
21M
3:16:54
Rank: #18156 (+286)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:24:00
Rank: #18039 (+117)
21M → 35K
7:06 | 9:29/mi
23M
3:36:53
Rank: #17902 (+137)
35K → 23M
12:53 | 10:17/mi
24M
3:46:15
Rank: #17730 (+172)
23M → 24M
9:22 | 9:22/mi
40K· 24.85 mi
3:55:14
Rank: #17677 (+53)
24M → 40K
8:59 | 10:30/mi
25.2M
3:59:19
Rank: #17643 (+34)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:09:25
Rank: #17630 (+13)
25.2M → Finish
10:06 | 9:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:20
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:13:05
Pace10:09 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4325:558:2125:55
8:21
-
10K
6.21 mi11:47:4452:568:3127:01
8:42
+0:21
15K
9.32 mi12:16:341:21:468:4628:50
9:17
+0:35
20K
12.43 mi12:45:001:50:128:5228:26
9:09
-0:08
Half
13.11 mi12:51:081:56:208:526:08
8:59
-0:10
25K
15.53 mi13:14:592:20:119:0123:51
9:50
+0:51
30K
18.64 mi13:48:022:53:149:1833:03
10:38
+0:48
20M
20.00 mi14:01:333:06:459:2013:31
9:57
-0:41
21M
21.00 mi14:11:423:16:549:2310:09
10:09
+0:12
35K
21.75 mi14:18:483:24:009:237:06
9:29
-0:40
23M
23.00 mi14:31:413:36:539:2612:53
10:17
+0:48
24M
24.00 mi14:41:033:46:159:269:22
9:22
-0:55
40K
24.85 mi14:50:023:55:149:288:59
10:30
+1:08
25.2M
25.20 mi14:54:073:59:199:304:05
11:50
+1:20
Finish
26.22 mi15:04:134:09:259:3110:06
9:55
-1:55

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

8:21 /mi

Average Pace

9:31 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:42

50% of race

Time at Steady Pace

1:04:43

26% of race

Time at Slower Pace

59:00

24% of race

Average Pace: 9:31 /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 mi11:20:4325:558:2125:55
8:21
#16902
10K
6.21 mi11:47:4452:568:3127:01
8:42
#17616
15K
9.32 mi12:16:341:21:468:4628:50
9:17
#18578
20K
12.43 mi12:45:001:50:128:5228:26
9:09
#18337
Half
13.11 mi12:51:081:56:208:526:08
8:59
#18327
25K
15.53 mi13:14:592:20:119:0123:51
9:50
#18416
30K
18.64 mi13:48:022:53:149:1833:03
10:38
#18620
20M
20.00 mi14:01:333:06:459:2013:31
9:57
#18442
21M
21.00 mi14:11:423:16:549:2310:09
10:09
#18156
35K
21.75 mi14:18:483:24:009:237:06
9:29
#18039
23M
23.00 mi14:31:413:36:539:2612:53
10:17
#17902
24M
24.00 mi14:41:033:46:159:269:22
9:22
#17730
40K
24.85 mi14:50:023:55:149:288:59
10:30
#17677
25.2M
25.20 mi14:54:073:59:199:304:05
11:50
#17643
Finish
26.22 mi15:04:134:09:259:3110:06
9:55
#17630
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi169026107610719965(Top 78%)7766(Top 71%)7766(Top 443%)
10K6.21 mi3.10 mi17616-7146509-4026509-40218349(Top 72%)6929(Top 63%)6929(Top 395%)
15K9.32 mi3.11 mi18578-9627069-5607069-56019965(Top 78%)7766(Top 71%)7766(Top 443%)
20K12.43 mi3.11 mi18337+2416923+1466923+14618013(Top 71%)6710(Top 61%)6710(Top 383%)
Half13.11 mi0.68 mi18327+106913+106913+1018249(Top 71%)6919(Top 63%)6919(Top 395%)
25K15.53 mi2.42 mi18416-896995-826995-8218664(Top 73%)7198(Top 66%)7198(Top 411%)
30K18.64 mi3.11 mi18620-2047175-1807175-18019116(Top 75%)7634(Top 70%)7634(Top 435%)
20M20.00 mi1.36 mi18442+1787105+707105+7016293(Top 64%)6365(Top 58%)6365(Top 363%)
21M21.00 mi1.00 mi18156+2866968+1376968+13713582(Top 53%)5092(Top 47%)5092(Top 290%)
35K21.75 mi0.75 mi18039+1176925+436925+4315484(Top 61%)6093(Top 56%)6093(Top 348%)
23M23.00 mi1.25 mi17902+1376881+446881+4416409(Top 64%)6604(Top 60%)6604(Top 377%)
24M24.00 mi1.00 mi17730+1726807+746807+7413915(Top 54%)5412(Top 50%)5412(Top 309%)
40K24.85 mi0.85 mi17677+536806+16806+116728(Top 65%)6881(Top 63%)6881(Top 393%)
25.2M25.20 mi0.35 mi17643+346803+36803+316982(Top 66%)7034(Top 64%)7034(Top 401%)
Finish26.22 mi1.02 mi17630+136821-186821-1818100(Top 71%)7553(Top 69%)7553(Top 431%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

19965

Females

7766

F45-49

7766

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

18349

Females

6929

F45-49

6929

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

19965

Females

7766

F45-49

7766

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

18013

Females

6710

F45-49

6710

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18249

Females

6919

F45-49

6919

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

18664

Females

7198

F45-49

7198

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19116

Females

7634

F45-49

7634

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

16293

Females

6365

F45-49

6365

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

13582

Females

5092

F45-49

5092

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

15484

Females

6093

F45-49

6093

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

16409

Females

6604

F45-49

6604

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

13915

Females

5412

F45-49

5412

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

16728

Females

6881

F45-49

6881

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16982

Females

7034

F45-49

7034

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18100

Females

7553

F45-49

7553

Passing Analysis

Category:
Athletes Passed
2085
Passed By
2813
Net Change
-728
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16902
5K → 10K91805-714#16902#17616
10K → 15K451007-962#17616#18578
15K → 20K364123+241#18578#18337
20K → Half4333+10#18337#18327
Half → 25K185274-89#18327#18416
25K → 30K178382-204#18416#18620
30K → 20M20527+178#18620#18442
20M → 21M2926+286#18442#18156
21M → 35K13013+117#18156#18039
35K → 23M16831+137#18039#17902
23M → 24M1753+172#17902#17730
24M → 40K8532+53#17730#17677
40K → 25.2M4713+34#17677#17643
25.2M → Finish7764+13#17643#17630
TOTALS20852813-728
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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