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BOSTON MARATHON 2024

Britta Welsch

Bib: 16533•F

CA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 22%
Gender (Female)
#0 / 10924
Top 7%
Division (F18-39)
#0 / 4660
Top 14%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:21
Rank: #10896
Start → 5K
23:21 | 7:31/mi
10K· 6.21 mi
45:53
Rank: #9509 (+1387)
5K → 10K
22:32 | 7:15/mi
15K· 9.32 mi
1:09:02
Rank: #9403 (+106)
10K → 15K
23:09 | 7:27/mi
20K· 12.43 mi
1:32:10
Rank: #8980 (+423)
15K → 20K
23:08 | 7:27/mi
Half· 13.11 mi
1:37:04
Rank: #8866 (+114)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:55:17
Rank: #8486 (+380)
Half → 25K
18:13 | 7:31/mi
30K· 18.64 mi
2:18:48
Rank: #7758 (+728)
25K → 30K
23:31 | 7:34/mi
20M
2:28:51
Rank: #7338 (+420)
30K → 20M
10:03 | 7:24/mi
21M
2:36:28
Rank: #6892 (+446)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:41:57
Rank: #6711 (+181)
21M → 35K
5:29 | 7:20/mi
23M
2:51:28
Rank: #6415 (+296)
35K → 23M
9:31 | 7:36/mi
24M
2:59:00
Rank: #6227 (+188)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:05:19
Rank: #6020 (+207)
24M → 40K
6:19 | 7:23/mi
25.2M
3:07:54
Rank: #5862 (+158)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:14:50
Rank: #5656 (+206)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:37:04
Pace7:24 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4623:217:3123:21
7:31
-
10K
6.21 mi11:36:1845:537:2322:32
7:15
-0:16
15K
9.32 mi11:59:271:09:027:2423:09
7:27
+0:12
20K
12.43 mi12:22:351:32:107:2523:08
7:27
0:00
Half
13.11 mi12:27:291:37:047:244:54
7:11
-0:16
25K
15.53 mi12:45:421:55:177:2518:13
7:31
+0:20
30K
18.64 mi13:09:132:18:487:2723:31
7:34
+0:03
20M
20.00 mi13:19:162:28:517:2710:03
7:24
-0:10
21M
21.00 mi13:26:532:36:287:277:37
7:37
+0:13
35K
21.75 mi13:32:222:41:577:275:29
7:20
-0:17
23M
23.00 mi13:41:532:51:287:279:31
7:36
+0:16
24M
24.00 mi13:49:252:59:007:287:32
7:32
-0:04
40K
24.85 mi13:55:443:05:197:276:19
7:23
-0:09
25.2M
25.20 mi13:58:193:07:547:272:35
7:29
+0:06
Finish
26.22 mi14:05:153:14:507:266:56
6:48
-0:41

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

6:48 /mi

Average Pace

7:26 /mi

Slowest Pace

7:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:30

53% of race

Time at Steady Pace

1:32:20

47% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi11:13:4623:217:3123:21
7:31
#10896
10K
6.21 mi11:36:1845:537:2322:32
7:15
#9509
15K
9.32 mi11:59:271:09:027:2423:09
7:27
#9403
20K
12.43 mi12:22:351:32:107:2523:08
7:27
#8980
Half
13.11 mi12:27:291:37:047:244:54
7:11
#8866
25K
15.53 mi12:45:421:55:177:2518:13
7:31
#8486
30K
18.64 mi13:09:132:18:487:2723:31
7:34
#7758
20M
20.00 mi13:19:162:28:517:2710:03
7:24
#7338
21M
21.00 mi13:26:532:36:287:277:37
7:37
#6892
35K
21.75 mi13:32:222:41:577:275:29
7:20
#6711
23M
23.00 mi13:41:532:51:287:279:31
7:36
#6415
24M
24.00 mi13:49:252:59:007:287:32
7:32
#6227
40K
24.85 mi13:55:443:05:197:276:19
7:23
#6020
25.2M
25.20 mi13:58:193:07:547:272:35
7:29
#5862
Finish
26.22 mi14:05:153:14:507:266:56
6:48
#5656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10896250025009287(Top 36%)1819(Top 17%)1819(Top 39%)
10K6.21 mi3.10 mi9509+13871826+6741826+6748298(Top 32%)1353(Top 12%)1353(Top 29%)
15K9.32 mi3.11 mi9403+1061813+131813+139287(Top 36%)1819(Top 17%)1819(Top 39%)
20K12.43 mi3.11 mi8980+4231655+1581655+1587983(Top 31%)1374(Top 13%)1374(Top 29%)
Half13.11 mi0.68 mi8866+1141613+421613+426913(Top 27%)959(Top 9%)959(Top 21%)
25K15.53 mi2.42 mi8486+3801497+1161497+1167053(Top 28%)1177(Top 11%)1177(Top 25%)
30K18.64 mi3.11 mi7758+7281284+2131284+2135453(Top 21%)790(Top 7%)790(Top 17%)
20M20.00 mi1.36 mi7338+4201149+1351149+1353932(Top 15%)427(Top 4%)427(Top 9%)
21M21.00 mi1.00 mi6892+4461041+1081041+1082883(Top 11%)279(Top 3%)279(Top 6%)
35K21.75 mi0.75 mi6711+1811010+311010+314321(Top 17%)635(Top 6%)635(Top 14%)
23M23.00 mi1.25 mi6415+296949+61949+614024(Top 16%)617(Top 6%)617(Top 13%)
24M24.00 mi1.00 mi6227+188924+25924+254286(Top 17%)795(Top 7%)795(Top 17%)
40K24.85 mi0.85 mi6020+207887+37887+373129(Top 12%)472(Top 4%)472(Top 10%)
25.2M25.20 mi0.35 mi5862+158848+39848+391456(Top 6%)138(Top 1%)138(Top 3%)
Finish26.22 mi1.02 mi5656+206815+33815+332383(Top 9%)318(Top 3%)318(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9287

Females

1819

F18-39

1819

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8298

Females

1353

F18-39

1353

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9287

Females

1819

F18-39

1819

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

7983

Females

1374

F18-39

1374

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

6913

Females

959

F18-39

959

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7053

Females

1177

F18-39

1177

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5453

Females

790

F18-39

790

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3932

Females

427

F18-39

427

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2883

Females

279

F18-39

279

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4321

Females

635

F18-39

635

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4024

Females

617

F18-39

617

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4286

Females

795

F18-39

795

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3129

Females

472

F18-39

472

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1456

Females

138

F18-39

138

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2383

Females

318

F18-39

318

Passing Analysis

Category:
Athletes Passed
5471*
Passed By
231
Net Change
+5240
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10896
5K → 10K1400*13+1387#10896#9509
10K → 15K241135+106#9509#9403
15K → 20K45229+423#9403#8980
20K → Half1184+114#8980#8866
Half → 25K40424+380#8866#8486
25K → 30K7379+728#8486#7758
30K → 20M4211+420#7758#7338
20M → 21M4460+446#7338#6892
21M → 35K1843+181#6892#6711
35K → 23M3026+296#6711#6415
23M → 24M1924+188#6415#6227
24M → 40K2092+207#6227#6020
40K → 25.2M1580+158#6020#5862
25.2M → Finish2071+206#5862#5656
TOTALS5471*231+5240

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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