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BOSTON MARATHON 2024

Natalie Siegler

Bib: 20541•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 47%
Gender (Female)
#0 / 10924
Top 34%
Masters (Masters Women)
#0 / 6263
Top 21%
Division (F45-49)
#0 / 1753
Top 26%
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
7:53/mi
24:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:21
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:14:18
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:39:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:45:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:05:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:32:48
↑ 181↓ 1480.2%
20M
9:03/mi
2:45:06
↑ 64↓ 500.2%
21M
9:10/mi
2:54:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
3:00:29
↑ 17↓ 861.7%
23M
8:42/mi
3:11:22
↑ 23↓ 630.6%
24M
8:36/mi
3:19:58
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:27:44
↓ 200.3%
25.2M
9:40/mi
3:31:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:24/mi
3:39:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:54:37
Pace8:45 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0324:317:5324:31
7:53
-
10K
6.21 mi11:43:5349:217:5724:50
8:00
+0:07
15K
9.32 mi12:08:501:14:187:5824:57
8:02
+0:02
20K
12.43 mi12:34:021:39:308:0025:12
8:07
+0:05
Half
13.11 mi12:39:331:45:018:015:31
8:05
-0:02
25K
15.53 mi13:00:082:05:368:0520:35
8:29
+0:24
30K
18.64 mi13:27:202:32:488:1227:12
8:45
+0:16
20M
20.00 mi13:39:382:45:068:1512:18
9:03
+0:18
21M
21.00 mi13:48:482:54:168:189:10
9:10
+0:07
35K
21.75 mi13:55:013:00:298:186:13
8:19
-0:51
23M
23.00 mi14:05:543:11:228:1910:53
8:42
+0:23
24M
24.00 mi14:14:303:19:588:208:36
8:36
-0:06
40K
24.85 mi14:22:163:27:448:217:46
9:05
+0:29
25.2M
25.20 mi14:25:363:31:048:233:20
9:40
+0:35
Finish
26.22 mi14:34:103:39:388:238:34
8:24
-1:16

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

8:23 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:01

48% of race

Time at Steady Pace

54:51

25% of race

Time at Slower Pace

59:46

27% of race

Average Pace: 8:23 /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 mi11:19:0324:317:5324:31
7:53
#13816
10K
6.21 mi11:43:5349:217:5724:50
8:00
#13991
15K
9.32 mi12:08:501:14:187:5824:57
8:02
#13867
20K
12.43 mi12:34:021:39:308:0025:12
8:07
#13483
Half
13.11 mi12:39:331:45:018:015:31
8:05
#13475
25K
15.53 mi13:00:082:05:368:0520:35
8:29
#13305
30K
18.64 mi13:27:202:32:488:1227:12
8:45
#12942
20M
20.00 mi13:39:382:45:068:1512:18
9:03
#12845
21M
21.00 mi13:48:482:54:168:189:10
9:10
#12598
35K
21.75 mi13:55:013:00:298:186:13
8:19
#12478
23M
23.00 mi14:05:543:11:228:1910:53
8:42
#12223
24M
24.00 mi14:14:303:19:588:208:36
8:36
#12081
40K
24.85 mi14:22:163:27:448:217:46
9:05
#12041
25.2M
25.20 mi14:25:363:31:048:233:20
9:40
#11982
Finish
26.22 mi14:34:103:39:388:238:34
8:24
#11900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi138164191419113670(Top 54%)4166(Top 38%)4166(Top 238%)
10K6.21 mi3.10 mi13991-1754330-1394330-13914152(Top 55%)4428(Top 41%)4428(Top 253%)
15K9.32 mi3.11 mi13867+1244267+634267+6313670(Top 54%)4166(Top 38%)4166(Top 238%)
20K12.43 mi3.11 mi13483+3844052+2154052+21512607(Top 49%)3633(Top 33%)3633(Top 207%)
Half13.11 mi0.68 mi13475+84055-34055-313325(Top 52%)4089(Top 37%)4089(Top 233%)
25K15.53 mi2.42 mi13305+1703983+723983+7212995(Top 51%)4041(Top 37%)4041(Top 231%)
30K18.64 mi3.11 mi12942+3633878+1053878+10511976(Top 47%)3725(Top 34%)3725(Top 212%)
20M20.00 mi1.36 mi12845+973882-43882-412405(Top 49%)4233(Top 39%)4233(Top 241%)
21M21.00 mi1.00 mi12598+2473801+813801+819379(Top 37%)2890(Top 26%)2890(Top 165%)
35K21.75 mi0.75 mi12478+1203780+213780+219682(Top 38%)3062(Top 28%)3062(Top 175%)
23M23.00 mi1.25 mi12223+2553696+843696+849538(Top 37%)3150(Top 29%)3150(Top 180%)
24M24.00 mi1.00 mi12081+1423670+263670+2610065(Top 39%)3477(Top 32%)3477(Top 198%)
40K24.85 mi0.85 mi12041+403696-263696-2611275(Top 44%)4179(Top 38%)4179(Top 238%)
25.2M25.20 mi0.35 mi11982+593676+203676+209500(Top 37%)3403(Top 31%)3403(Top 194%)
Finish26.22 mi1.02 mi11900+823672+43672+411011(Top 43%)3989(Top 37%)3989(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

13670

Females

4166

F45-49

4166

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14152

Females

4428

F45-49

4428

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

13670

Females

4166

F45-49

4166

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12607

Females

3633

F45-49

3633

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13325

Females

4089

F45-49

4089

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

12995

Females

4041

F45-49

4041

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

11976

Females

3725

F45-49

3725

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

12405

Females

4233

F45-49

4233

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9379

Females

2890

F45-49

2890

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9682

Females

3062

F45-49

3062

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9538

Females

3150

F45-49

3150

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10065

Females

3477

F45-49

3477

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11275

Females

4179

F45-49

4179

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9500

Females

3403

F45-49

3403

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11011

Females

3989

F45-49

3989

Passing Analysis

Category:
Athletes Passed
3122
Passed By
1206
Net Change
+1916
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13816
5K → 10K226401-175#13816#13991
10K → 15K289165+124#13991#13867
15K → 20K45975+384#13867#13483
20K → Half4840+8#13483#13475
Half → 25K307137+170#13475#13305
25K → 30K468105+363#13305#12942
30K → 20M18285+97#12942#12845
20M → 21M26922+247#12845#12598
21M → 35K13212+120#12598#12478
35K → 23M27318+255#12478#12223
23M → 24M16927+142#12223#12081
24M → 40K10565+40#12081#12041
40K → 25.2M7011+59#12041#11982
25.2M → Finish12543+82#11982#11900
TOTALS31221206+1916
📊

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